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[Cluster-devel] [PATCH 12/15] GFS2: Rename eattr.[ch] as xattr.[ch]



Use the more conventional name for the extended attribute
support code. Update all the places which care.

Signed-off-by: Steven Whitehouse <swhiteho redhat com>
---
 fs/gfs2/Makefile    |    2 +-
 fs/gfs2/acl.c       |    2 +-
 fs/gfs2/eattr.c     | 1558 ---------------------------------------------------
 fs/gfs2/eattr.h     |   72 ---
 fs/gfs2/inode.c     |    2 +-
 fs/gfs2/ops_inode.c |    2 +-
 fs/gfs2/super.c     |    2 +-
 fs/gfs2/xattr.c     | 1558 +++++++++++++++++++++++++++++++++++++++++++++++++++
 fs/gfs2/xattr.h     |   72 +++
 9 files changed, 1635 insertions(+), 1635 deletions(-)
 delete mode 100644 fs/gfs2/eattr.c
 delete mode 100644 fs/gfs2/eattr.h
 create mode 100644 fs/gfs2/xattr.c
 create mode 100644 fs/gfs2/xattr.h

diff --git a/fs/gfs2/Makefile b/fs/gfs2/Makefile
index 2a4fd89..21f7e46 100644
--- a/fs/gfs2/Makefile
+++ b/fs/gfs2/Makefile
@@ -1,6 +1,6 @@
 EXTRA_CFLAGS := -I$(src)
 obj-$(CONFIG_GFS2_FS) += gfs2.o
-gfs2-y := acl.o bmap.o dir.o eattr.o glock.o \
+gfs2-y := acl.o bmap.o dir.o xattr.o glock.o \
 	glops.o inode.o log.o lops.o main.o meta_io.o \
 	aops.o dentry.o export.o file.o \
 	ops_fstype.o ops_inode.o quota.o \
diff --git a/fs/gfs2/acl.c b/fs/gfs2/acl.c
index f6777f1..3fc4e3a 100644
--- a/fs/gfs2/acl.c
+++ b/fs/gfs2/acl.c
@@ -19,7 +19,7 @@
 #include "gfs2.h"
 #include "incore.h"
 #include "acl.h"
-#include "eattr.h"
+#include "xattr.h"
 #include "glock.h"
 #include "inode.h"
 #include "meta_io.h"
diff --git a/fs/gfs2/eattr.c b/fs/gfs2/eattr.c
deleted file mode 100644
index d9a9e26..0000000
--- a/fs/gfs2/eattr.c
+++ /dev/null
@@ -1,1558 +0,0 @@
-/*
- * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License version 2.
- */
-
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/completion.h>
-#include <linux/buffer_head.h>
-#include <linux/xattr.h>
-#include <linux/gfs2_ondisk.h>
-#include <asm/uaccess.h>
-
-#include "gfs2.h"
-#include "incore.h"
-#include "acl.h"
-#include "eattr.h"
-#include "glock.h"
-#include "inode.h"
-#include "meta_io.h"
-#include "quota.h"
-#include "rgrp.h"
-#include "trans.h"
-#include "util.h"
-
-/**
- * ea_calc_size - returns the acutal number of bytes the request will take up
- *                (not counting any unstuffed data blocks)
- * @sdp:
- * @er:
- * @size:
- *
- * Returns: 1 if the EA should be stuffed
- */
-
-static int ea_calc_size(struct gfs2_sbd *sdp, unsigned int nsize, size_t dsize,
-			unsigned int *size)
-{
-	unsigned int jbsize = sdp->sd_jbsize;
-
-	/* Stuffed */
-	*size = ALIGN(sizeof(struct gfs2_ea_header) + nsize + dsize, 8);
-
-	if (*size <= jbsize)
-		return 1;
-
-	/* Unstuffed */
-	*size = ALIGN(sizeof(struct gfs2_ea_header) + nsize +
-		      (sizeof(__be64) * DIV_ROUND_UP(dsize, jbsize)), 8);
-
-	return 0;
-}
-
-static int ea_check_size(struct gfs2_sbd *sdp, unsigned int nsize, size_t dsize)
-{
-	unsigned int size;
-
-	if (dsize > GFS2_EA_MAX_DATA_LEN)
-		return -ERANGE;
-
-	ea_calc_size(sdp, nsize, dsize, &size);
-
-	/* This can only happen with 512 byte blocks */
-	if (size > sdp->sd_jbsize)
-		return -ERANGE;
-
-	return 0;
-}
-
-typedef int (*ea_call_t) (struct gfs2_inode *ip, struct buffer_head *bh,
-			  struct gfs2_ea_header *ea,
-			  struct gfs2_ea_header *prev, void *private);
-
-static int ea_foreach_i(struct gfs2_inode *ip, struct buffer_head *bh,
-			ea_call_t ea_call, void *data)
-{
-	struct gfs2_ea_header *ea, *prev = NULL;
-	int error = 0;
-
-	if (gfs2_metatype_check(GFS2_SB(&ip->i_inode), bh, GFS2_METATYPE_EA))
-		return -EIO;
-
-	for (ea = GFS2_EA_BH2FIRST(bh);; prev = ea, ea = GFS2_EA2NEXT(ea)) {
-		if (!GFS2_EA_REC_LEN(ea))
-			goto fail;
-		if (!(bh->b_data <= (char *)ea && (char *)GFS2_EA2NEXT(ea) <=
-						  bh->b_data + bh->b_size))
-			goto fail;
-		if (!GFS2_EATYPE_VALID(ea->ea_type))
-			goto fail;
-
-		error = ea_call(ip, bh, ea, prev, data);
-		if (error)
-			return error;
-
-		if (GFS2_EA_IS_LAST(ea)) {
-			if ((char *)GFS2_EA2NEXT(ea) !=
-			    bh->b_data + bh->b_size)
-				goto fail;
-			break;
-		}
-	}
-
-	return error;
-
-fail:
-	gfs2_consist_inode(ip);
-	return -EIO;
-}
-
-static int ea_foreach(struct gfs2_inode *ip, ea_call_t ea_call, void *data)
-{
-	struct buffer_head *bh, *eabh;
-	__be64 *eablk, *end;
-	int error;
-
-	error = gfs2_meta_read(ip->i_gl, ip->i_eattr, DIO_WAIT, &bh);
-	if (error)
-		return error;
-
-	if (!(ip->i_diskflags & GFS2_DIF_EA_INDIRECT)) {
-		error = ea_foreach_i(ip, bh, ea_call, data);
-		goto out;
-	}
-
-	if (gfs2_metatype_check(GFS2_SB(&ip->i_inode), bh, GFS2_METATYPE_IN)) {
-		error = -EIO;
-		goto out;
-	}
-
-	eablk = (__be64 *)(bh->b_data + sizeof(struct gfs2_meta_header));
-	end = eablk + GFS2_SB(&ip->i_inode)->sd_inptrs;
-
-	for (; eablk < end; eablk++) {
-		u64 bn;
-
-		if (!*eablk)
-			break;
-		bn = be64_to_cpu(*eablk);
-
-		error = gfs2_meta_read(ip->i_gl, bn, DIO_WAIT, &eabh);
-		if (error)
-			break;
-		error = ea_foreach_i(ip, eabh, ea_call, data);
-		brelse(eabh);
-		if (error)
-			break;
-	}
-out:
-	brelse(bh);
-	return error;
-}
-
-struct ea_find {
-	int type;
-	const char *name;
-	size_t namel;
-	struct gfs2_ea_location *ef_el;
-};
-
-static int ea_find_i(struct gfs2_inode *ip, struct buffer_head *bh,
-		     struct gfs2_ea_header *ea, struct gfs2_ea_header *prev,
-		     void *private)
-{
-	struct ea_find *ef = private;
-
-	if (ea->ea_type == GFS2_EATYPE_UNUSED)
-		return 0;
-
-	if (ea->ea_type == ef->type) {
-		if (ea->ea_name_len == ef->namel &&
-		    !memcmp(GFS2_EA2NAME(ea), ef->name, ea->ea_name_len)) {
-			struct gfs2_ea_location *el = ef->ef_el;
-			get_bh(bh);
-			el->el_bh = bh;
-			el->el_ea = ea;
-			el->el_prev = prev;
-			return 1;
-		}
-	}
-
-	return 0;
-}
-
-int gfs2_ea_find(struct gfs2_inode *ip, int type, const char *name,
-		 struct gfs2_ea_location *el)
-{
-	struct ea_find ef;
-	int error;
-
-	ef.type = type;
-	ef.name = name;
-	ef.namel = strlen(name);
-	ef.ef_el = el;
-
-	memset(el, 0, sizeof(struct gfs2_ea_location));
-
-	error = ea_foreach(ip, ea_find_i, &ef);
-	if (error > 0)
-		return 0;
-
-	return error;
-}
-
-/**
- * ea_dealloc_unstuffed -
- * @ip:
- * @bh:
- * @ea:
- * @prev:
- * @private:
- *
- * Take advantage of the fact that all unstuffed blocks are
- * allocated from the same RG.  But watch, this may not always
- * be true.
- *
- * Returns: errno
- */
-
-static int ea_dealloc_unstuffed(struct gfs2_inode *ip, struct buffer_head *bh,
-				struct gfs2_ea_header *ea,
-				struct gfs2_ea_header *prev, void *private)
-{
-	int *leave = private;
-	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
-	struct gfs2_rgrpd *rgd;
-	struct gfs2_holder rg_gh;
-	struct buffer_head *dibh;
-	__be64 *dataptrs;
-	u64 bn = 0;
-	u64 bstart = 0;
-	unsigned int blen = 0;
-	unsigned int blks = 0;
-	unsigned int x;
-	int error;
-
-	if (GFS2_EA_IS_STUFFED(ea))
-		return 0;
-
-	dataptrs = GFS2_EA2DATAPTRS(ea);
-	for (x = 0; x < ea->ea_num_ptrs; x++, dataptrs++) {
-		if (*dataptrs) {
-			blks++;
-			bn = be64_to_cpu(*dataptrs);
-		}
-	}
-	if (!blks)
-		return 0;
-
-	rgd = gfs2_blk2rgrpd(sdp, bn);
-	if (!rgd) {
-		gfs2_consist_inode(ip);
-		return -EIO;
-	}
-
-	error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0, &rg_gh);
-	if (error)
-		return error;
-
-	error = gfs2_trans_begin(sdp, rgd->rd_length + RES_DINODE +
-				 RES_EATTR + RES_STATFS + RES_QUOTA, blks);
-	if (error)
-		goto out_gunlock;
-
-	gfs2_trans_add_bh(ip->i_gl, bh, 1);
-
-	dataptrs = GFS2_EA2DATAPTRS(ea);
-	for (x = 0; x < ea->ea_num_ptrs; x++, dataptrs++) {
-		if (!*dataptrs)
-			break;
-		bn = be64_to_cpu(*dataptrs);
-
-		if (bstart + blen == bn)
-			blen++;
-		else {
-			if (bstart)
-				gfs2_free_meta(ip, bstart, blen);
-			bstart = bn;
-			blen = 1;
-		}
-
-		*dataptrs = 0;
-		gfs2_add_inode_blocks(&ip->i_inode, -1);
-	}
-	if (bstart)
-		gfs2_free_meta(ip, bstart, blen);
-
-	if (prev && !leave) {
-		u32 len;
-
-		len = GFS2_EA_REC_LEN(prev) + GFS2_EA_REC_LEN(ea);
-		prev->ea_rec_len = cpu_to_be32(len);
-
-		if (GFS2_EA_IS_LAST(ea))
-			prev->ea_flags |= GFS2_EAFLAG_LAST;
-	} else {
-		ea->ea_type = GFS2_EATYPE_UNUSED;
-		ea->ea_num_ptrs = 0;
-	}
-
-	error = gfs2_meta_inode_buffer(ip, &dibh);
-	if (!error) {
-		ip->i_inode.i_ctime = CURRENT_TIME;
-		gfs2_trans_add_bh(ip->i_gl, dibh, 1);
-		gfs2_dinode_out(ip, dibh->b_data);
-		brelse(dibh);
-	}
-
-	gfs2_trans_end(sdp);
-
-out_gunlock:
-	gfs2_glock_dq_uninit(&rg_gh);
-	return error;
-}
-
-static int ea_remove_unstuffed(struct gfs2_inode *ip, struct buffer_head *bh,
-			       struct gfs2_ea_header *ea,
-			       struct gfs2_ea_header *prev, int leave)
-{
-	struct gfs2_alloc *al;
-	int error;
-
-	al = gfs2_alloc_get(ip);
-	if (!al)
-		return -ENOMEM;
-
-	error = gfs2_quota_hold(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
-	if (error)
-		goto out_alloc;
-
-	error = gfs2_rindex_hold(GFS2_SB(&ip->i_inode), &al->al_ri_gh);
-	if (error)
-		goto out_quota;
-
-	error = ea_dealloc_unstuffed(ip, bh, ea, prev, (leave) ? &error : NULL);
-
-	gfs2_glock_dq_uninit(&al->al_ri_gh);
-
-out_quota:
-	gfs2_quota_unhold(ip);
-out_alloc:
-	gfs2_alloc_put(ip);
-	return error;
-}
-
-struct ea_list {
-	struct gfs2_ea_request *ei_er;
-	unsigned int ei_size;
-};
-
-static inline unsigned int gfs2_ea_strlen(struct gfs2_ea_header *ea)
-{
-	switch (ea->ea_type) {
-	case GFS2_EATYPE_USR:
-		return 5 + ea->ea_name_len + 1;
-	case GFS2_EATYPE_SYS:
-		return 7 + ea->ea_name_len + 1;
-	case GFS2_EATYPE_SECURITY:
-		return 9 + ea->ea_name_len + 1;
-	default:
-		return 0;
-	}
-}
-
-static int ea_list_i(struct gfs2_inode *ip, struct buffer_head *bh,
-		     struct gfs2_ea_header *ea, struct gfs2_ea_header *prev,
-		     void *private)
-{
-	struct ea_list *ei = private;
-	struct gfs2_ea_request *er = ei->ei_er;
-	unsigned int ea_size = gfs2_ea_strlen(ea);
-
-	if (ea->ea_type == GFS2_EATYPE_UNUSED)
-		return 0;
-
-	if (er->er_data_len) {
-		char *prefix = NULL;
-		unsigned int l = 0;
-		char c = 0;
-
-		if (ei->ei_size + ea_size > er->er_data_len)
-			return -ERANGE;
-
-		switch (ea->ea_type) {
-		case GFS2_EATYPE_USR:
-			prefix = "user.";
-			l = 5;
-			break;
-		case GFS2_EATYPE_SYS:
-			prefix = "system.";
-			l = 7;
-			break;
-		case GFS2_EATYPE_SECURITY:
-			prefix = "security.";
-			l = 9;
-			break;
-		}
-
-		BUG_ON(l == 0);
-
-		memcpy(er->er_data + ei->ei_size, prefix, l);
-		memcpy(er->er_data + ei->ei_size + l, GFS2_EA2NAME(ea),
-		       ea->ea_name_len);
-		memcpy(er->er_data + ei->ei_size + ea_size - 1, &c, 1);
-	}
-
-	ei->ei_size += ea_size;
-
-	return 0;
-}
-
-/**
- * gfs2_listxattr - List gfs2 extended attributes
- * @dentry: The dentry whose inode we are interested in
- * @buffer: The buffer to write the results
- * @size: The size of the buffer
- *
- * Returns: actual size of data on success, -errno on error
- */
-
-ssize_t gfs2_listxattr(struct dentry *dentry, char *buffer, size_t size)
-{
-	struct gfs2_inode *ip = GFS2_I(dentry->d_inode);
-	struct gfs2_ea_request er;
-	struct gfs2_holder i_gh;
-	int error;
-
-	memset(&er, 0, sizeof(struct gfs2_ea_request));
-	if (size) {
-		er.er_data = buffer;
-		er.er_data_len = size;
-	}
-
-	error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &i_gh);
-	if (error)
-		return error;
-
-	if (ip->i_eattr) {
-		struct ea_list ei = { .ei_er = &er, .ei_size = 0 };
-
-		error = ea_foreach(ip, ea_list_i, &ei);
-		if (!error)
-			error = ei.ei_size;
-	}
-
-	gfs2_glock_dq_uninit(&i_gh);
-
-	return error;
-}
-
-/**
- * ea_get_unstuffed - actually copies the unstuffed data into the
- *                    request buffer
- * @ip: The GFS2 inode
- * @ea: The extended attribute header structure
- * @data: The data to be copied
- *
- * Returns: errno
- */
-
-static int ea_get_unstuffed(struct gfs2_inode *ip, struct gfs2_ea_header *ea,
-			    char *data)
-{
-	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
-	struct buffer_head **bh;
-	unsigned int amount = GFS2_EA_DATA_LEN(ea);
-	unsigned int nptrs = DIV_ROUND_UP(amount, sdp->sd_jbsize);
-	__be64 *dataptrs = GFS2_EA2DATAPTRS(ea);
-	unsigned int x;
-	int error = 0;
-
-	bh = kcalloc(nptrs, sizeof(struct buffer_head *), GFP_NOFS);
-	if (!bh)
-		return -ENOMEM;
-
-	for (x = 0; x < nptrs; x++) {
-		error = gfs2_meta_read(ip->i_gl, be64_to_cpu(*dataptrs), 0,
-				       bh + x);
-		if (error) {
-			while (x--)
-				brelse(bh[x]);
-			goto out;
-		}
-		dataptrs++;
-	}
-
-	for (x = 0; x < nptrs; x++) {
-		error = gfs2_meta_wait(sdp, bh[x]);
-		if (error) {
-			for (; x < nptrs; x++)
-				brelse(bh[x]);
-			goto out;
-		}
-		if (gfs2_metatype_check(sdp, bh[x], GFS2_METATYPE_ED)) {
-			for (; x < nptrs; x++)
-				brelse(bh[x]);
-			error = -EIO;
-			goto out;
-		}
-
-		memcpy(data, bh[x]->b_data + sizeof(struct gfs2_meta_header),
-		       (sdp->sd_jbsize > amount) ? amount : sdp->sd_jbsize);
-
-		amount -= sdp->sd_jbsize;
-		data += sdp->sd_jbsize;
-
-		brelse(bh[x]);
-	}
-
-out:
-	kfree(bh);
-	return error;
-}
-
-int gfs2_ea_get_copy(struct gfs2_inode *ip, struct gfs2_ea_location *el,
-		     char *data, size_t size)
-{
-	int ret;
-	size_t len = GFS2_EA_DATA_LEN(el->el_ea);
-	if (len > size)
-		return -ERANGE;
-
-	if (GFS2_EA_IS_STUFFED(el->el_ea)) {
-		memcpy(data, GFS2_EA2DATA(el->el_ea), len);
-		return len;
-	}
-	ret = ea_get_unstuffed(ip, el->el_ea, data);
-	if (ret < 0)
-		return ret;
-	return len;
-}
-
-/**
- * gfs2_xattr_get - Get a GFS2 extended attribute
- * @inode: The inode
- * @type: The type of extended attribute
- * @name: The name of the extended attribute
- * @buffer: The buffer to write the result into
- * @size: The size of the buffer
- *
- * Returns: actual size of data on success, -errno on error
- */
-
-int gfs2_xattr_get(struct inode *inode, int type, const char *name,
-		   void *buffer, size_t size)
-{
-	struct gfs2_inode *ip = GFS2_I(inode);
-	struct gfs2_ea_location el;
-	int error;
-
-	if (!ip->i_eattr)
-		return -ENODATA;
-	if (strlen(name) > GFS2_EA_MAX_NAME_LEN)
-		return -EINVAL;
-
-	error = gfs2_ea_find(ip, type, name, &el);
-	if (error)
-		return error;
-	if (!el.el_ea)
-		return -ENODATA;
-	if (size) 
-		error = gfs2_ea_get_copy(ip, &el, buffer, size);
-	else
-		error = GFS2_EA_DATA_LEN(el.el_ea);
-	brelse(el.el_bh);
-
-	return error;
-}
-
-/**
- * ea_alloc_blk - allocates a new block for extended attributes.
- * @ip: A pointer to the inode that's getting extended attributes
- * @bhp: Pointer to pointer to a struct buffer_head
- *
- * Returns: errno
- */
-
-static int ea_alloc_blk(struct gfs2_inode *ip, struct buffer_head **bhp)
-{
-	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
-	struct gfs2_ea_header *ea;
-	unsigned int n = 1;
-	u64 block;
-	int error;
-
-	error = gfs2_alloc_block(ip, &block, &n);
-	if (error)
-		return error;
-	gfs2_trans_add_unrevoke(sdp, block, 1);
-	*bhp = gfs2_meta_new(ip->i_gl, block);
-	gfs2_trans_add_bh(ip->i_gl, *bhp, 1);
-	gfs2_metatype_set(*bhp, GFS2_METATYPE_EA, GFS2_FORMAT_EA);
-	gfs2_buffer_clear_tail(*bhp, sizeof(struct gfs2_meta_header));
-
-	ea = GFS2_EA_BH2FIRST(*bhp);
-	ea->ea_rec_len = cpu_to_be32(sdp->sd_jbsize);
-	ea->ea_type = GFS2_EATYPE_UNUSED;
-	ea->ea_flags = GFS2_EAFLAG_LAST;
-	ea->ea_num_ptrs = 0;
-
-	gfs2_add_inode_blocks(&ip->i_inode, 1);
-
-	return 0;
-}
-
-/**
- * ea_write - writes the request info to an ea, creating new blocks if
- *            necessary
- * @ip: inode that is being modified
- * @ea: the location of the new ea in a block
- * @er: the write request
- *
- * Note: does not update ea_rec_len or the GFS2_EAFLAG_LAST bin of ea_flags
- *
- * returns : errno
- */
-
-static int ea_write(struct gfs2_inode *ip, struct gfs2_ea_header *ea,
-		    struct gfs2_ea_request *er)
-{
-	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
-	int error;
-
-	ea->ea_data_len = cpu_to_be32(er->er_data_len);
-	ea->ea_name_len = er->er_name_len;
-	ea->ea_type = er->er_type;
-	ea->__pad = 0;
-
-	memcpy(GFS2_EA2NAME(ea), er->er_name, er->er_name_len);
-
-	if (GFS2_EAREQ_SIZE_STUFFED(er) <= sdp->sd_jbsize) {
-		ea->ea_num_ptrs = 0;
-		memcpy(GFS2_EA2DATA(ea), er->er_data, er->er_data_len);
-	} else {
-		__be64 *dataptr = GFS2_EA2DATAPTRS(ea);
-		const char *data = er->er_data;
-		unsigned int data_len = er->er_data_len;
-		unsigned int copy;
-		unsigned int x;
-
-		ea->ea_num_ptrs = DIV_ROUND_UP(er->er_data_len, sdp->sd_jbsize);
-		for (x = 0; x < ea->ea_num_ptrs; x++) {
-			struct buffer_head *bh;
-			u64 block;
-			int mh_size = sizeof(struct gfs2_meta_header);
-			unsigned int n = 1;
-
-			error = gfs2_alloc_block(ip, &block, &n);
-			if (error)
-				return error;
-			gfs2_trans_add_unrevoke(sdp, block, 1);
-			bh = gfs2_meta_new(ip->i_gl, block);
-			gfs2_trans_add_bh(ip->i_gl, bh, 1);
-			gfs2_metatype_set(bh, GFS2_METATYPE_ED, GFS2_FORMAT_ED);
-
-			gfs2_add_inode_blocks(&ip->i_inode, 1);
-
-			copy = data_len > sdp->sd_jbsize ? sdp->sd_jbsize :
-							   data_len;
-			memcpy(bh->b_data + mh_size, data, copy);
-			if (copy < sdp->sd_jbsize)
-				memset(bh->b_data + mh_size + copy, 0,
-				       sdp->sd_jbsize - copy);
-
-			*dataptr++ = cpu_to_be64(bh->b_blocknr);
-			data += copy;
-			data_len -= copy;
-
-			brelse(bh);
-		}
-
-		gfs2_assert_withdraw(sdp, !data_len);
-	}
-
-	return 0;
-}
-
-typedef int (*ea_skeleton_call_t) (struct gfs2_inode *ip,
-				   struct gfs2_ea_request *er, void *private);
-
-static int ea_alloc_skeleton(struct gfs2_inode *ip, struct gfs2_ea_request *er,
-			     unsigned int blks,
-			     ea_skeleton_call_t skeleton_call, void *private)
-{
-	struct gfs2_alloc *al;
-	struct buffer_head *dibh;
-	int error;
-
-	al = gfs2_alloc_get(ip);
-	if (!al)
-		return -ENOMEM;
-
-	error = gfs2_quota_lock_check(ip);
-	if (error)
-		goto out;
-
-	al->al_requested = blks;
-
-	error = gfs2_inplace_reserve(ip);
-	if (error)
-		goto out_gunlock_q;
-
-	error = gfs2_trans_begin(GFS2_SB(&ip->i_inode),
-				 blks + al->al_rgd->rd_length +
-				 RES_DINODE + RES_STATFS + RES_QUOTA, 0);
-	if (error)
-		goto out_ipres;
-
-	error = skeleton_call(ip, er, private);
-	if (error)
-		goto out_end_trans;
-
-	error = gfs2_meta_inode_buffer(ip, &dibh);
-	if (!error) {
-		ip->i_inode.i_ctime = CURRENT_TIME;
-		gfs2_trans_add_bh(ip->i_gl, dibh, 1);
-		gfs2_dinode_out(ip, dibh->b_data);
-		brelse(dibh);
-	}
-
-out_end_trans:
-	gfs2_trans_end(GFS2_SB(&ip->i_inode));
-out_ipres:
-	gfs2_inplace_release(ip);
-out_gunlock_q:
-	gfs2_quota_unlock(ip);
-out:
-	gfs2_alloc_put(ip);
-	return error;
-}
-
-static int ea_init_i(struct gfs2_inode *ip, struct gfs2_ea_request *er,
-		     void *private)
-{
-	struct buffer_head *bh;
-	int error;
-
-	error = ea_alloc_blk(ip, &bh);
-	if (error)
-		return error;
-
-	ip->i_eattr = bh->b_blocknr;
-	error = ea_write(ip, GFS2_EA_BH2FIRST(bh), er);
-
-	brelse(bh);
-
-	return error;
-}
-
-/**
- * ea_init - initializes a new eattr block
- * @ip:
- * @er:
- *
- * Returns: errno
- */
-
-static int ea_init(struct gfs2_inode *ip, int type, const char *name,
-		   const void *data, size_t size)
-{
-	struct gfs2_ea_request er;
-	unsigned int jbsize = GFS2_SB(&ip->i_inode)->sd_jbsize;
-	unsigned int blks = 1;
-
-	er.er_type = type;
-	er.er_name = name;
-	er.er_name_len = strlen(name);
-	er.er_data = (void *)data;
-	er.er_data_len = size;
-
-	if (GFS2_EAREQ_SIZE_STUFFED(&er) > jbsize)
-		blks += DIV_ROUND_UP(er.er_data_len, jbsize);
-
-	return ea_alloc_skeleton(ip, &er, blks, ea_init_i, NULL);
-}
-
-static struct gfs2_ea_header *ea_split_ea(struct gfs2_ea_header *ea)
-{
-	u32 ea_size = GFS2_EA_SIZE(ea);
-	struct gfs2_ea_header *new = (struct gfs2_ea_header *)((char *)ea +
-				     ea_size);
-	u32 new_size = GFS2_EA_REC_LEN(ea) - ea_size;
-	int last = ea->ea_flags & GFS2_EAFLAG_LAST;
-
-	ea->ea_rec_len = cpu_to_be32(ea_size);
-	ea->ea_flags ^= last;
-
-	new->ea_rec_len = cpu_to_be32(new_size);
-	new->ea_flags = last;
-
-	return new;
-}
-
-static void ea_set_remove_stuffed(struct gfs2_inode *ip,
-				  struct gfs2_ea_location *el)
-{
-	struct gfs2_ea_header *ea = el->el_ea;
-	struct gfs2_ea_header *prev = el->el_prev;
-	u32 len;
-
-	gfs2_trans_add_bh(ip->i_gl, el->el_bh, 1);
-
-	if (!prev || !GFS2_EA_IS_STUFFED(ea)) {
-		ea->ea_type = GFS2_EATYPE_UNUSED;
-		return;
-	} else if (GFS2_EA2NEXT(prev) != ea) {
-		prev = GFS2_EA2NEXT(prev);
-		gfs2_assert_withdraw(GFS2_SB(&ip->i_inode), GFS2_EA2NEXT(prev) == ea);
-	}
-
-	len = GFS2_EA_REC_LEN(prev) + GFS2_EA_REC_LEN(ea);
-	prev->ea_rec_len = cpu_to_be32(len);
-
-	if (GFS2_EA_IS_LAST(ea))
-		prev->ea_flags |= GFS2_EAFLAG_LAST;
-}
-
-struct ea_set {
-	int ea_split;
-
-	struct gfs2_ea_request *es_er;
-	struct gfs2_ea_location *es_el;
-
-	struct buffer_head *es_bh;
-	struct gfs2_ea_header *es_ea;
-};
-
-static int ea_set_simple_noalloc(struct gfs2_inode *ip, struct buffer_head *bh,
-				 struct gfs2_ea_header *ea, struct ea_set *es)
-{
-	struct gfs2_ea_request *er = es->es_er;
-	struct buffer_head *dibh;
-	int error;
-
-	error = gfs2_trans_begin(GFS2_SB(&ip->i_inode), RES_DINODE + 2 * RES_EATTR, 0);
-	if (error)
-		return error;
-
-	gfs2_trans_add_bh(ip->i_gl, bh, 1);
-
-	if (es->ea_split)
-		ea = ea_split_ea(ea);
-
-	ea_write(ip, ea, er);
-
-	if (es->es_el)
-		ea_set_remove_stuffed(ip, es->es_el);
-
-	error = gfs2_meta_inode_buffer(ip, &dibh);
-	if (error)
-		goto out;
-	ip->i_inode.i_ctime = CURRENT_TIME;
-	gfs2_trans_add_bh(ip->i_gl, dibh, 1);
-	gfs2_dinode_out(ip, dibh->b_data);
-	brelse(dibh);
-out:
-	gfs2_trans_end(GFS2_SB(&ip->i_inode));
-	return error;
-}
-
-static int ea_set_simple_alloc(struct gfs2_inode *ip,
-			       struct gfs2_ea_request *er, void *private)
-{
-	struct ea_set *es = private;
-	struct gfs2_ea_header *ea = es->es_ea;
-	int error;
-
-	gfs2_trans_add_bh(ip->i_gl, es->es_bh, 1);
-
-	if (es->ea_split)
-		ea = ea_split_ea(ea);
-
-	error = ea_write(ip, ea, er);
-	if (error)
-		return error;
-
-	if (es->es_el)
-		ea_set_remove_stuffed(ip, es->es_el);
-
-	return 0;
-}
-
-static int ea_set_simple(struct gfs2_inode *ip, struct buffer_head *bh,
-			 struct gfs2_ea_header *ea, struct gfs2_ea_header *prev,
-			 void *private)
-{
-	struct ea_set *es = private;
-	unsigned int size;
-	int stuffed;
-	int error;
-
-	stuffed = ea_calc_size(GFS2_SB(&ip->i_inode), es->es_er->er_name_len,
-			       es->es_er->er_data_len, &size);
-
-	if (ea->ea_type == GFS2_EATYPE_UNUSED) {
-		if (GFS2_EA_REC_LEN(ea) < size)
-			return 0;
-		if (!GFS2_EA_IS_STUFFED(ea)) {
-			error = ea_remove_unstuffed(ip, bh, ea, prev, 1);
-			if (error)
-				return error;
-		}
-		es->ea_split = 0;
-	} else if (GFS2_EA_REC_LEN(ea) - GFS2_EA_SIZE(ea) >= size)
-		es->ea_split = 1;
-	else
-		return 0;
-
-	if (stuffed) {
-		error = ea_set_simple_noalloc(ip, bh, ea, es);
-		if (error)
-			return error;
-	} else {
-		unsigned int blks;
-
-		es->es_bh = bh;
-		es->es_ea = ea;
-		blks = 2 + DIV_ROUND_UP(es->es_er->er_data_len,
-					GFS2_SB(&ip->i_inode)->sd_jbsize);
-
-		error = ea_alloc_skeleton(ip, es->es_er, blks,
-					  ea_set_simple_alloc, es);
-		if (error)
-			return error;
-	}
-
-	return 1;
-}
-
-static int ea_set_block(struct gfs2_inode *ip, struct gfs2_ea_request *er,
-			void *private)
-{
-	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
-	struct buffer_head *indbh, *newbh;
-	__be64 *eablk;
-	int error;
-	int mh_size = sizeof(struct gfs2_meta_header);
-
-	if (ip->i_diskflags & GFS2_DIF_EA_INDIRECT) {
-		__be64 *end;
-
-		error = gfs2_meta_read(ip->i_gl, ip->i_eattr, DIO_WAIT,
-				       &indbh);
-		if (error)
-			return error;
-
-		if (gfs2_metatype_check(sdp, indbh, GFS2_METATYPE_IN)) {
-			error = -EIO;
-			goto out;
-		}
-
-		eablk = (__be64 *)(indbh->b_data + mh_size);
-		end = eablk + sdp->sd_inptrs;
-
-		for (; eablk < end; eablk++)
-			if (!*eablk)
-				break;
-
-		if (eablk == end) {
-			error = -ENOSPC;
-			goto out;
-		}
-
-		gfs2_trans_add_bh(ip->i_gl, indbh, 1);
-	} else {
-		u64 blk;
-		unsigned int n = 1;
-		error = gfs2_alloc_block(ip, &blk, &n);
-		if (error)
-			return error;
-		gfs2_trans_add_unrevoke(sdp, blk, 1);
-		indbh = gfs2_meta_new(ip->i_gl, blk);
-		gfs2_trans_add_bh(ip->i_gl, indbh, 1);
-		gfs2_metatype_set(indbh, GFS2_METATYPE_IN, GFS2_FORMAT_IN);
-		gfs2_buffer_clear_tail(indbh, mh_size);
-
-		eablk = (__be64 *)(indbh->b_data + mh_size);
-		*eablk = cpu_to_be64(ip->i_eattr);
-		ip->i_eattr = blk;
-		ip->i_diskflags |= GFS2_DIF_EA_INDIRECT;
-		gfs2_add_inode_blocks(&ip->i_inode, 1);
-
-		eablk++;
-	}
-
-	error = ea_alloc_blk(ip, &newbh);
-	if (error)
-		goto out;
-
-	*eablk = cpu_to_be64((u64)newbh->b_blocknr);
-	error = ea_write(ip, GFS2_EA_BH2FIRST(newbh), er);
-	brelse(newbh);
-	if (error)
-		goto out;
-
-	if (private)
-		ea_set_remove_stuffed(ip, private);
-
-out:
-	brelse(indbh);
-	return error;
-}
-
-static int ea_set_i(struct gfs2_inode *ip, int type, const char *name,
-		    const void *value, size_t size, struct gfs2_ea_location *el)
-{
-	struct gfs2_ea_request er;
-	struct ea_set es;
-	unsigned int blks = 2;
-	int error;
-
-	er.er_type = type;
-	er.er_name = name;
-	er.er_data = (void *)value;
-	er.er_name_len = strlen(name);
-	er.er_data_len = size;
-
-	memset(&es, 0, sizeof(struct ea_set));
-	es.es_er = &er;
-	es.es_el = el;
-
-	error = ea_foreach(ip, ea_set_simple, &es);
-	if (error > 0)
-		return 0;
-	if (error)
-		return error;
-
-	if (!(ip->i_diskflags & GFS2_DIF_EA_INDIRECT))
-		blks++;
-	if (GFS2_EAREQ_SIZE_STUFFED(&er) > GFS2_SB(&ip->i_inode)->sd_jbsize)
-		blks += DIV_ROUND_UP(er.er_data_len, GFS2_SB(&ip->i_inode)->sd_jbsize);
-
-	return ea_alloc_skeleton(ip, &er, blks, ea_set_block, el);
-}
-
-static int ea_set_remove_unstuffed(struct gfs2_inode *ip,
-				   struct gfs2_ea_location *el)
-{
-	if (el->el_prev && GFS2_EA2NEXT(el->el_prev) != el->el_ea) {
-		el->el_prev = GFS2_EA2NEXT(el->el_prev);
-		gfs2_assert_withdraw(GFS2_SB(&ip->i_inode),
-				     GFS2_EA2NEXT(el->el_prev) == el->el_ea);
-	}
-
-	return ea_remove_unstuffed(ip, el->el_bh, el->el_ea, el->el_prev,0);
-}
-
-static int ea_remove_stuffed(struct gfs2_inode *ip, struct gfs2_ea_location *el)
-{
-	struct gfs2_ea_header *ea = el->el_ea;
-	struct gfs2_ea_header *prev = el->el_prev;
-	struct buffer_head *dibh;
-	int error;
-
-	error = gfs2_trans_begin(GFS2_SB(&ip->i_inode), RES_DINODE + RES_EATTR, 0);
-	if (error)
-		return error;
-
-	gfs2_trans_add_bh(ip->i_gl, el->el_bh, 1);
-
-	if (prev) {
-		u32 len;
-
-		len = GFS2_EA_REC_LEN(prev) + GFS2_EA_REC_LEN(ea);
-		prev->ea_rec_len = cpu_to_be32(len);
-
-		if (GFS2_EA_IS_LAST(ea))
-			prev->ea_flags |= GFS2_EAFLAG_LAST;
-	} else {
-		ea->ea_type = GFS2_EATYPE_UNUSED;
-	}
-
-	error = gfs2_meta_inode_buffer(ip, &dibh);
-	if (!error) {
-		ip->i_inode.i_ctime = CURRENT_TIME;
-		gfs2_trans_add_bh(ip->i_gl, dibh, 1);
-		gfs2_dinode_out(ip, dibh->b_data);
-		brelse(dibh);
-	}
-
-	gfs2_trans_end(GFS2_SB(&ip->i_inode));
-
-	return error;
-}
-
-/**
- * gfs2_xattr_remove - Remove a GFS2 extended attribute
- * @inode: The inode
- * @type: The type of the extended attribute
- * @name: The name of the extended attribute
- *
- * This is not called directly by the VFS since we use the (common)
- * scheme of making a "set with NULL data" mean a remove request. Note
- * that this is different from a set with zero length data.
- *
- * Returns: 0, or errno on failure
- */
-
-static int gfs2_xattr_remove(struct inode *inode, int type, const char *name)
-{
-	struct gfs2_inode *ip = GFS2_I(inode);
-	struct gfs2_ea_location el;
-	int error;
-
-	if (!ip->i_eattr)
-		return -ENODATA;
-
-	error = gfs2_ea_find(ip, type, name, &el);
-	if (error)
-		return error;
-	if (!el.el_ea)
-		return -ENODATA;
-
-	if (GFS2_EA_IS_STUFFED(el.el_ea))
-		error = ea_remove_stuffed(ip, &el);
-	else
-		error = ea_remove_unstuffed(ip, el.el_bh, el.el_ea, el.el_prev, 0);
-
-	brelse(el.el_bh);
-
-	return error;
-}
-
-/**
- * gfs2_xattr_set - Set (or remove) a GFS2 extended attribute
- * @inode: The inode
- * @type: The type of the extended attribute
- * @name: The name of the extended attribute
- * @value: The value of the extended attribute (NULL for remove)
- * @size: The size of the @value argument
- * @flags: Create or Replace
- *
- * See gfs2_xattr_remove() for details of the removal of xattrs.
- *
- * Returns: 0 or errno on failure
- */
-
-int gfs2_xattr_set(struct inode *inode, int type, const char *name,
-		   const void *value, size_t size, int flags)
-{
-	struct gfs2_sbd *sdp = GFS2_SB(inode);
-	struct gfs2_inode *ip = GFS2_I(inode);
-	struct gfs2_ea_location el;
-	unsigned int namel = strlen(name);
-	int error;
-
-	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
-		return -EPERM;
-	if (namel > GFS2_EA_MAX_NAME_LEN)
-		return -ERANGE;
-
-	if (value == NULL)
-		return gfs2_xattr_remove(inode, type, name);
-
-	if (ea_check_size(sdp, namel, size))
-		return -ERANGE;
-
-	if (!ip->i_eattr) {
-		if (flags & XATTR_REPLACE)
-			return -ENODATA;
-		return ea_init(ip, type, name, value, size);
-	}
-
-	error = gfs2_ea_find(ip, type, name, &el);
-	if (error)
-		return error;
-
-	if (el.el_ea) {
-		if (ip->i_diskflags & GFS2_DIF_APPENDONLY) {
-			brelse(el.el_bh);
-			return -EPERM;
-		}
-
-		error = -EEXIST;
-		if (!(flags & XATTR_CREATE)) {
-			int unstuffed = !GFS2_EA_IS_STUFFED(el.el_ea);
-			error = ea_set_i(ip, type, name, value, size, &el);
-			if (!error && unstuffed)
-				ea_set_remove_unstuffed(ip, &el);
-		}
-
-		brelse(el.el_bh);
-		return error;
-	}
-
-	error = -ENODATA;
-	if (!(flags & XATTR_REPLACE))
-		error = ea_set_i(ip, type, name, value, size, NULL);
-
-	return error;
-}
-
-static int ea_acl_chmod_unstuffed(struct gfs2_inode *ip,
-				  struct gfs2_ea_header *ea, char *data)
-{
-	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
-	struct buffer_head **bh;
-	unsigned int amount = GFS2_EA_DATA_LEN(ea);
-	unsigned int nptrs = DIV_ROUND_UP(amount, sdp->sd_jbsize);
-	__be64 *dataptrs = GFS2_EA2DATAPTRS(ea);
-	unsigned int x;
-	int error;
-
-	bh = kcalloc(nptrs, sizeof(struct buffer_head *), GFP_NOFS);
-	if (!bh)
-		return -ENOMEM;
-
-	error = gfs2_trans_begin(sdp, nptrs + RES_DINODE, 0);
-	if (error)
-		goto out;
-
-	for (x = 0; x < nptrs; x++) {
-		error = gfs2_meta_read(ip->i_gl, be64_to_cpu(*dataptrs), 0,
-				       bh + x);
-		if (error) {
-			while (x--)
-				brelse(bh[x]);
-			goto fail;
-		}
-		dataptrs++;
-	}
-
-	for (x = 0; x < nptrs; x++) {
-		error = gfs2_meta_wait(sdp, bh[x]);
-		if (error) {
-			for (; x < nptrs; x++)
-				brelse(bh[x]);
-			goto fail;
-		}
-		if (gfs2_metatype_check(sdp, bh[x], GFS2_METATYPE_ED)) {
-			for (; x < nptrs; x++)
-				brelse(bh[x]);
-			error = -EIO;
-			goto fail;
-		}
-
-		gfs2_trans_add_bh(ip->i_gl, bh[x], 1);
-
-		memcpy(bh[x]->b_data + sizeof(struct gfs2_meta_header), data,
-		       (sdp->sd_jbsize > amount) ? amount : sdp->sd_jbsize);
-
-		amount -= sdp->sd_jbsize;
-		data += sdp->sd_jbsize;
-
-		brelse(bh[x]);
-	}
-
-out:
-	kfree(bh);
-	return error;
-
-fail:
-	gfs2_trans_end(sdp);
-	kfree(bh);
-	return error;
-}
-
-int gfs2_ea_acl_chmod(struct gfs2_inode *ip, struct gfs2_ea_location *el,
-		      struct iattr *attr, char *data)
-{
-	struct buffer_head *dibh;
-	int error;
-
-	if (GFS2_EA_IS_STUFFED(el->el_ea)) {
-		error = gfs2_trans_begin(GFS2_SB(&ip->i_inode), RES_DINODE + RES_EATTR, 0);
-		if (error)
-			return error;
-
-		gfs2_trans_add_bh(ip->i_gl, el->el_bh, 1);
-		memcpy(GFS2_EA2DATA(el->el_ea), data,
-		       GFS2_EA_DATA_LEN(el->el_ea));
-	} else
-		error = ea_acl_chmod_unstuffed(ip, el->el_ea, data);
-
-	if (error)
-		return error;
-
-	error = gfs2_meta_inode_buffer(ip, &dibh);
-	if (!error) {
-		error = inode_setattr(&ip->i_inode, attr);
-		gfs2_assert_warn(GFS2_SB(&ip->i_inode), !error);
-		gfs2_trans_add_bh(ip->i_gl, dibh, 1);
-		gfs2_dinode_out(ip, dibh->b_data);
-		brelse(dibh);
-	}
-
-	gfs2_trans_end(GFS2_SB(&ip->i_inode));
-
-	return error;
-}
-
-static int ea_dealloc_indirect(struct gfs2_inode *ip)
-{
-	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
-	struct gfs2_rgrp_list rlist;
-	struct buffer_head *indbh, *dibh;
-	__be64 *eablk, *end;
-	unsigned int rg_blocks = 0;
-	u64 bstart = 0;
-	unsigned int blen = 0;
-	unsigned int blks = 0;
-	unsigned int x;
-	int error;
-
-	memset(&rlist, 0, sizeof(struct gfs2_rgrp_list));
-
-	error = gfs2_meta_read(ip->i_gl, ip->i_eattr, DIO_WAIT, &indbh);
-	if (error)
-		return error;
-
-	if (gfs2_metatype_check(sdp, indbh, GFS2_METATYPE_IN)) {
-		error = -EIO;
-		goto out;
-	}
-
-	eablk = (__be64 *)(indbh->b_data + sizeof(struct gfs2_meta_header));
-	end = eablk + sdp->sd_inptrs;
-
-	for (; eablk < end; eablk++) {
-		u64 bn;
-
-		if (!*eablk)
-			break;
-		bn = be64_to_cpu(*eablk);
-
-		if (bstart + blen == bn)
-			blen++;
-		else {
-			if (bstart)
-				gfs2_rlist_add(sdp, &rlist, bstart);
-			bstart = bn;
-			blen = 1;
-		}
-		blks++;
-	}
-	if (bstart)
-		gfs2_rlist_add(sdp, &rlist, bstart);
-	else
-		goto out;
-
-	gfs2_rlist_alloc(&rlist, LM_ST_EXCLUSIVE);
-
-	for (x = 0; x < rlist.rl_rgrps; x++) {
-		struct gfs2_rgrpd *rgd;
-		rgd = rlist.rl_ghs[x].gh_gl->gl_object;
-		rg_blocks += rgd->rd_length;
-	}
-
-	error = gfs2_glock_nq_m(rlist.rl_rgrps, rlist.rl_ghs);
-	if (error)
-		goto out_rlist_free;
-
-	error = gfs2_trans_begin(sdp, rg_blocks + RES_DINODE + RES_INDIRECT +
-				 RES_STATFS + RES_QUOTA, blks);
-	if (error)
-		goto out_gunlock;
-
-	gfs2_trans_add_bh(ip->i_gl, indbh, 1);
-
-	eablk = (__be64 *)(indbh->b_data + sizeof(struct gfs2_meta_header));
-	bstart = 0;
-	blen = 0;
-
-	for (; eablk < end; eablk++) {
-		u64 bn;
-
-		if (!*eablk)
-			break;
-		bn = be64_to_cpu(*eablk);
-
-		if (bstart + blen == bn)
-			blen++;
-		else {
-			if (bstart)
-				gfs2_free_meta(ip, bstart, blen);
-			bstart = bn;
-			blen = 1;
-		}
-
-		*eablk = 0;
-		gfs2_add_inode_blocks(&ip->i_inode, -1);
-	}
-	if (bstart)
-		gfs2_free_meta(ip, bstart, blen);
-
-	ip->i_diskflags &= ~GFS2_DIF_EA_INDIRECT;
-
-	error = gfs2_meta_inode_buffer(ip, &dibh);
-	if (!error) {
-		gfs2_trans_add_bh(ip->i_gl, dibh, 1);
-		gfs2_dinode_out(ip, dibh->b_data);
-		brelse(dibh);
-	}
-
-	gfs2_trans_end(sdp);
-
-out_gunlock:
-	gfs2_glock_dq_m(rlist.rl_rgrps, rlist.rl_ghs);
-out_rlist_free:
-	gfs2_rlist_free(&rlist);
-out:
-	brelse(indbh);
-	return error;
-}
-
-static int ea_dealloc_block(struct gfs2_inode *ip)
-{
-	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
-	struct gfs2_alloc *al = ip->i_alloc;
-	struct gfs2_rgrpd *rgd;
-	struct buffer_head *dibh;
-	int error;
-
-	rgd = gfs2_blk2rgrpd(sdp, ip->i_eattr);
-	if (!rgd) {
-		gfs2_consist_inode(ip);
-		return -EIO;
-	}
-
-	error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0,
-				   &al->al_rgd_gh);
-	if (error)
-		return error;
-
-	error = gfs2_trans_begin(sdp, RES_RG_BIT + RES_DINODE + RES_STATFS +
-				 RES_QUOTA, 1);
-	if (error)
-		goto out_gunlock;
-
-	gfs2_free_meta(ip, ip->i_eattr, 1);
-
-	ip->i_eattr = 0;
-	gfs2_add_inode_blocks(&ip->i_inode, -1);
-
-	error = gfs2_meta_inode_buffer(ip, &dibh);
-	if (!error) {
-		gfs2_trans_add_bh(ip->i_gl, dibh, 1);
-		gfs2_dinode_out(ip, dibh->b_data);
-		brelse(dibh);
-	}
-
-	gfs2_trans_end(sdp);
-
-out_gunlock:
-	gfs2_glock_dq_uninit(&al->al_rgd_gh);
-	return error;
-}
-
-/**
- * gfs2_ea_dealloc - deallocate the extended attribute fork
- * @ip: the inode
- *
- * Returns: errno
- */
-
-int gfs2_ea_dealloc(struct gfs2_inode *ip)
-{
-	struct gfs2_alloc *al;
-	int error;
-
-	al = gfs2_alloc_get(ip);
-	if (!al)
-		return -ENOMEM;
-
-	error = gfs2_quota_hold(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
-	if (error)
-		goto out_alloc;
-
-	error = gfs2_rindex_hold(GFS2_SB(&ip->i_inode), &al->al_ri_gh);
-	if (error)
-		goto out_quota;
-
-	error = ea_foreach(ip, ea_dealloc_unstuffed, NULL);
-	if (error)
-		goto out_rindex;
-
-	if (ip->i_diskflags & GFS2_DIF_EA_INDIRECT) {
-		error = ea_dealloc_indirect(ip);
-		if (error)
-			goto out_rindex;
-	}
-
-	error = ea_dealloc_block(ip);
-
-out_rindex:
-	gfs2_glock_dq_uninit(&al->al_ri_gh);
-out_quota:
-	gfs2_quota_unhold(ip);
-out_alloc:
-	gfs2_alloc_put(ip);
-	return error;
-}
-
-static int gfs2_xattr_user_get(struct inode *inode, const char *name,
-			       void *buffer, size_t size)
-{
-	return gfs2_xattr_get(inode, GFS2_EATYPE_USR, name, buffer, size);
-}
-
-static int gfs2_xattr_user_set(struct inode *inode, const char *name,
-			       const void *value, size_t size, int flags)
-{
-	return gfs2_xattr_set(inode, GFS2_EATYPE_USR, name, value, size, flags);
-}
-
-static int gfs2_xattr_system_get(struct inode *inode, const char *name,
-				 void *buffer, size_t size)
-{
-	return gfs2_xattr_get(inode, GFS2_EATYPE_SYS, name, buffer, size);
-}
-
-static int gfs2_xattr_system_set(struct inode *inode, const char *name,
-				 const void *value, size_t size, int flags)
-{
-	return gfs2_xattr_set(inode, GFS2_EATYPE_SYS, name, value, size, flags);
-}
-
-static int gfs2_xattr_security_get(struct inode *inode, const char *name,
-				   void *buffer, size_t size)
-{
-	return gfs2_xattr_get(inode, GFS2_EATYPE_SECURITY, name, buffer, size);
-}
-
-static int gfs2_xattr_security_set(struct inode *inode, const char *name,
-				   const void *value, size_t size, int flags)
-{
-	return gfs2_xattr_set(inode, GFS2_EATYPE_SECURITY, name, value, size, flags);
-}
-
-static struct xattr_handler gfs2_xattr_user_handler = {
-	.prefix = XATTR_USER_PREFIX,
-	.get    = gfs2_xattr_user_get,
-	.set    = gfs2_xattr_user_set,
-};
-
-static struct xattr_handler gfs2_xattr_security_handler = {
-	.prefix = XATTR_SECURITY_PREFIX,
-	.get    = gfs2_xattr_security_get,
-	.set    = gfs2_xattr_security_set,
-};
-
-static struct xattr_handler gfs2_xattr_system_handler = {
-	.prefix = XATTR_SYSTEM_PREFIX,
-	.get    = gfs2_xattr_system_get,
-	.set    = gfs2_xattr_system_set,
-};
-
-struct xattr_handler *gfs2_xattr_handlers[] = {
-	&gfs2_xattr_user_handler,
-	&gfs2_xattr_security_handler,
-	&gfs2_xattr_system_handler,
-	NULL,
-};
-
diff --git a/fs/gfs2/eattr.h b/fs/gfs2/eattr.h
deleted file mode 100644
index 4040a18..0000000
--- a/fs/gfs2/eattr.h
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License version 2.
- */
-
-#ifndef __EATTR_DOT_H__
-#define __EATTR_DOT_H__
-
-struct gfs2_inode;
-struct iattr;
-
-#define GFS2_EA_REC_LEN(ea) be32_to_cpu((ea)->ea_rec_len)
-#define GFS2_EA_DATA_LEN(ea) be32_to_cpu((ea)->ea_data_len)
-
-#define GFS2_EA_SIZE(ea) \
-ALIGN(sizeof(struct gfs2_ea_header) + (ea)->ea_name_len + \
-      ((GFS2_EA_IS_STUFFED(ea)) ? GFS2_EA_DATA_LEN(ea) : \
-                                  (sizeof(__be64) * (ea)->ea_num_ptrs)), 8)
-
-#define GFS2_EA_IS_STUFFED(ea) (!(ea)->ea_num_ptrs)
-#define GFS2_EA_IS_LAST(ea) ((ea)->ea_flags & GFS2_EAFLAG_LAST)
-
-#define GFS2_EAREQ_SIZE_STUFFED(er) \
-ALIGN(sizeof(struct gfs2_ea_header) + (er)->er_name_len + (er)->er_data_len, 8)
-
-#define GFS2_EA2NAME(ea) ((char *)((struct gfs2_ea_header *)(ea) + 1))
-#define GFS2_EA2DATA(ea) (GFS2_EA2NAME(ea) + (ea)->ea_name_len)
-
-#define GFS2_EA2DATAPTRS(ea) \
-((__be64 *)(GFS2_EA2NAME(ea) + ALIGN((ea)->ea_name_len, 8)))
-
-#define GFS2_EA2NEXT(ea) \
-((struct gfs2_ea_header *)((char *)(ea) + GFS2_EA_REC_LEN(ea)))
-
-#define GFS2_EA_BH2FIRST(bh) \
-((struct gfs2_ea_header *)((bh)->b_data + sizeof(struct gfs2_meta_header)))
-
-struct gfs2_ea_request {
-	const char *er_name;
-	char *er_data;
-	unsigned int er_name_len;
-	unsigned int er_data_len;
-	unsigned int er_type; /* GFS2_EATYPE_... */
-};
-
-struct gfs2_ea_location {
-	struct buffer_head *el_bh;
-	struct gfs2_ea_header *el_ea;
-	struct gfs2_ea_header *el_prev;
-};
-
-extern int gfs2_xattr_get(struct inode *inode, int type, const char *name,
-			  void *buffer, size_t size);
-extern int gfs2_xattr_set(struct inode *inode, int type, const char *name,
-			  const void *value, size_t size, int flags);
-extern ssize_t gfs2_listxattr(struct dentry *dentry, char *buffer, size_t size);
-extern int gfs2_ea_dealloc(struct gfs2_inode *ip);
-
-/* Exported to acl.c */
-
-extern int gfs2_ea_find(struct gfs2_inode *ip, int type, const char *name,
-			struct gfs2_ea_location *el);
-extern int gfs2_ea_get_copy(struct gfs2_inode *ip, struct gfs2_ea_location *el,
-			    char *data, size_t size);
-extern int gfs2_ea_acl_chmod(struct gfs2_inode *ip, struct gfs2_ea_location *el,
-			     struct iattr *attr, char *data);
-
-#endif /* __EATTR_DOT_H__ */
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index f936d2d..4f5e442 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -24,7 +24,7 @@
 #include "acl.h"
 #include "bmap.h"
 #include "dir.h"
-#include "eattr.h"
+#include "xattr.h"
 #include "glock.h"
 #include "glops.h"
 #include "inode.h"
diff --git a/fs/gfs2/ops_inode.c b/fs/gfs2/ops_inode.c
index 1ee0c26..c3ac180 100644
--- a/fs/gfs2/ops_inode.c
+++ b/fs/gfs2/ops_inode.c
@@ -26,7 +26,7 @@
 #include "acl.h"
 #include "bmap.h"
 #include "dir.h"
-#include "eattr.h"
+#include "xattr.h"
 #include "glock.h"
 #include "inode.h"
 #include "meta_io.h"
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index 7a5c128..2e78a3f 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -38,7 +38,7 @@
 #include "trans.h"
 #include "util.h"
 #include "sys.h"
-#include "eattr.h"
+#include "xattr.h"
 
 #define args_neq(a1, a2, x) ((a1)->ar_##x != (a2)->ar_##x)
 
diff --git a/fs/gfs2/xattr.c b/fs/gfs2/xattr.c
new file mode 100644
index 0000000..34ae9ba
--- /dev/null
+++ b/fs/gfs2/xattr.c
@@ -0,0 +1,1558 @@
+/*
+ * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
+ * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU General Public License version 2.
+ */
+
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/completion.h>
+#include <linux/buffer_head.h>
+#include <linux/xattr.h>
+#include <linux/gfs2_ondisk.h>
+#include <asm/uaccess.h>
+
+#include "gfs2.h"
+#include "incore.h"
+#include "acl.h"
+#include "xattr.h"
+#include "glock.h"
+#include "inode.h"
+#include "meta_io.h"
+#include "quota.h"
+#include "rgrp.h"
+#include "trans.h"
+#include "util.h"
+
+/**
+ * ea_calc_size - returns the acutal number of bytes the request will take up
+ *                (not counting any unstuffed data blocks)
+ * @sdp:
+ * @er:
+ * @size:
+ *
+ * Returns: 1 if the EA should be stuffed
+ */
+
+static int ea_calc_size(struct gfs2_sbd *sdp, unsigned int nsize, size_t dsize,
+			unsigned int *size)
+{
+	unsigned int jbsize = sdp->sd_jbsize;
+
+	/* Stuffed */
+	*size = ALIGN(sizeof(struct gfs2_ea_header) + nsize + dsize, 8);
+
+	if (*size <= jbsize)
+		return 1;
+
+	/* Unstuffed */
+	*size = ALIGN(sizeof(struct gfs2_ea_header) + nsize +
+		      (sizeof(__be64) * DIV_ROUND_UP(dsize, jbsize)), 8);
+
+	return 0;
+}
+
+static int ea_check_size(struct gfs2_sbd *sdp, unsigned int nsize, size_t dsize)
+{
+	unsigned int size;
+
+	if (dsize > GFS2_EA_MAX_DATA_LEN)
+		return -ERANGE;
+
+	ea_calc_size(sdp, nsize, dsize, &size);
+
+	/* This can only happen with 512 byte blocks */
+	if (size > sdp->sd_jbsize)
+		return -ERANGE;
+
+	return 0;
+}
+
+typedef int (*ea_call_t) (struct gfs2_inode *ip, struct buffer_head *bh,
+			  struct gfs2_ea_header *ea,
+			  struct gfs2_ea_header *prev, void *private);
+
+static int ea_foreach_i(struct gfs2_inode *ip, struct buffer_head *bh,
+			ea_call_t ea_call, void *data)
+{
+	struct gfs2_ea_header *ea, *prev = NULL;
+	int error = 0;
+
+	if (gfs2_metatype_check(GFS2_SB(&ip->i_inode), bh, GFS2_METATYPE_EA))
+		return -EIO;
+
+	for (ea = GFS2_EA_BH2FIRST(bh);; prev = ea, ea = GFS2_EA2NEXT(ea)) {
+		if (!GFS2_EA_REC_LEN(ea))
+			goto fail;
+		if (!(bh->b_data <= (char *)ea && (char *)GFS2_EA2NEXT(ea) <=
+						  bh->b_data + bh->b_size))
+			goto fail;
+		if (!GFS2_EATYPE_VALID(ea->ea_type))
+			goto fail;
+
+		error = ea_call(ip, bh, ea, prev, data);
+		if (error)
+			return error;
+
+		if (GFS2_EA_IS_LAST(ea)) {
+			if ((char *)GFS2_EA2NEXT(ea) !=
+			    bh->b_data + bh->b_size)
+				goto fail;
+			break;
+		}
+	}
+
+	return error;
+
+fail:
+	gfs2_consist_inode(ip);
+	return -EIO;
+}
+
+static int ea_foreach(struct gfs2_inode *ip, ea_call_t ea_call, void *data)
+{
+	struct buffer_head *bh, *eabh;
+	__be64 *eablk, *end;
+	int error;
+
+	error = gfs2_meta_read(ip->i_gl, ip->i_eattr, DIO_WAIT, &bh);
+	if (error)
+		return error;
+
+	if (!(ip->i_diskflags & GFS2_DIF_EA_INDIRECT)) {
+		error = ea_foreach_i(ip, bh, ea_call, data);
+		goto out;
+	}
+
+	if (gfs2_metatype_check(GFS2_SB(&ip->i_inode), bh, GFS2_METATYPE_IN)) {
+		error = -EIO;
+		goto out;
+	}
+
+	eablk = (__be64 *)(bh->b_data + sizeof(struct gfs2_meta_header));
+	end = eablk + GFS2_SB(&ip->i_inode)->sd_inptrs;
+
+	for (; eablk < end; eablk++) {
+		u64 bn;
+
+		if (!*eablk)
+			break;
+		bn = be64_to_cpu(*eablk);
+
+		error = gfs2_meta_read(ip->i_gl, bn, DIO_WAIT, &eabh);
+		if (error)
+			break;
+		error = ea_foreach_i(ip, eabh, ea_call, data);
+		brelse(eabh);
+		if (error)
+			break;
+	}
+out:
+	brelse(bh);
+	return error;
+}
+
+struct ea_find {
+	int type;
+	const char *name;
+	size_t namel;
+	struct gfs2_ea_location *ef_el;
+};
+
+static int ea_find_i(struct gfs2_inode *ip, struct buffer_head *bh,
+		     struct gfs2_ea_header *ea, struct gfs2_ea_header *prev,
+		     void *private)
+{
+	struct ea_find *ef = private;
+
+	if (ea->ea_type == GFS2_EATYPE_UNUSED)
+		return 0;
+
+	if (ea->ea_type == ef->type) {
+		if (ea->ea_name_len == ef->namel &&
+		    !memcmp(GFS2_EA2NAME(ea), ef->name, ea->ea_name_len)) {
+			struct gfs2_ea_location *el = ef->ef_el;
+			get_bh(bh);
+			el->el_bh = bh;
+			el->el_ea = ea;
+			el->el_prev = prev;
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+int gfs2_ea_find(struct gfs2_inode *ip, int type, const char *name,
+		 struct gfs2_ea_location *el)
+{
+	struct ea_find ef;
+	int error;
+
+	ef.type = type;
+	ef.name = name;
+	ef.namel = strlen(name);
+	ef.ef_el = el;
+
+	memset(el, 0, sizeof(struct gfs2_ea_location));
+
+	error = ea_foreach(ip, ea_find_i, &ef);
+	if (error > 0)
+		return 0;
+
+	return error;
+}
+
+/**
+ * ea_dealloc_unstuffed -
+ * @ip:
+ * @bh:
+ * @ea:
+ * @prev:
+ * @private:
+ *
+ * Take advantage of the fact that all unstuffed blocks are
+ * allocated from the same RG.  But watch, this may not always
+ * be true.
+ *
+ * Returns: errno
+ */
+
+static int ea_dealloc_unstuffed(struct gfs2_inode *ip, struct buffer_head *bh,
+				struct gfs2_ea_header *ea,
+				struct gfs2_ea_header *prev, void *private)
+{
+	int *leave = private;
+	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+	struct gfs2_rgrpd *rgd;
+	struct gfs2_holder rg_gh;
+	struct buffer_head *dibh;
+	__be64 *dataptrs;
+	u64 bn = 0;
+	u64 bstart = 0;
+	unsigned int blen = 0;
+	unsigned int blks = 0;
+	unsigned int x;
+	int error;
+
+	if (GFS2_EA_IS_STUFFED(ea))
+		return 0;
+
+	dataptrs = GFS2_EA2DATAPTRS(ea);
+	for (x = 0; x < ea->ea_num_ptrs; x++, dataptrs++) {
+		if (*dataptrs) {
+			blks++;
+			bn = be64_to_cpu(*dataptrs);
+		}
+	}
+	if (!blks)
+		return 0;
+
+	rgd = gfs2_blk2rgrpd(sdp, bn);
+	if (!rgd) {
+		gfs2_consist_inode(ip);
+		return -EIO;
+	}
+
+	error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0, &rg_gh);
+	if (error)
+		return error;
+
+	error = gfs2_trans_begin(sdp, rgd->rd_length + RES_DINODE +
+				 RES_EATTR + RES_STATFS + RES_QUOTA, blks);
+	if (error)
+		goto out_gunlock;
+
+	gfs2_trans_add_bh(ip->i_gl, bh, 1);
+
+	dataptrs = GFS2_EA2DATAPTRS(ea);
+	for (x = 0; x < ea->ea_num_ptrs; x++, dataptrs++) {
+		if (!*dataptrs)
+			break;
+		bn = be64_to_cpu(*dataptrs);
+
+		if (bstart + blen == bn)
+			blen++;
+		else {
+			if (bstart)
+				gfs2_free_meta(ip, bstart, blen);
+			bstart = bn;
+			blen = 1;
+		}
+
+		*dataptrs = 0;
+		gfs2_add_inode_blocks(&ip->i_inode, -1);
+	}
+	if (bstart)
+		gfs2_free_meta(ip, bstart, blen);
+
+	if (prev && !leave) {
+		u32 len;
+
+		len = GFS2_EA_REC_LEN(prev) + GFS2_EA_REC_LEN(ea);
+		prev->ea_rec_len = cpu_to_be32(len);
+
+		if (GFS2_EA_IS_LAST(ea))
+			prev->ea_flags |= GFS2_EAFLAG_LAST;
+	} else {
+		ea->ea_type = GFS2_EATYPE_UNUSED;
+		ea->ea_num_ptrs = 0;
+	}
+
+	error = gfs2_meta_inode_buffer(ip, &dibh);
+	if (!error) {
+		ip->i_inode.i_ctime = CURRENT_TIME;
+		gfs2_trans_add_bh(ip->i_gl, dibh, 1);
+		gfs2_dinode_out(ip, dibh->b_data);
+		brelse(dibh);
+	}
+
+	gfs2_trans_end(sdp);
+
+out_gunlock:
+	gfs2_glock_dq_uninit(&rg_gh);
+	return error;
+}
+
+static int ea_remove_unstuffed(struct gfs2_inode *ip, struct buffer_head *bh,
+			       struct gfs2_ea_header *ea,
+			       struct gfs2_ea_header *prev, int leave)
+{
+	struct gfs2_alloc *al;
+	int error;
+
+	al = gfs2_alloc_get(ip);
+	if (!al)
+		return -ENOMEM;
+
+	error = gfs2_quota_hold(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
+	if (error)
+		goto out_alloc;
+
+	error = gfs2_rindex_hold(GFS2_SB(&ip->i_inode), &al->al_ri_gh);
+	if (error)
+		goto out_quota;
+
+	error = ea_dealloc_unstuffed(ip, bh, ea, prev, (leave) ? &error : NULL);
+
+	gfs2_glock_dq_uninit(&al->al_ri_gh);
+
+out_quota:
+	gfs2_quota_unhold(ip);
+out_alloc:
+	gfs2_alloc_put(ip);
+	return error;
+}
+
+struct ea_list {
+	struct gfs2_ea_request *ei_er;
+	unsigned int ei_size;
+};
+
+static inline unsigned int gfs2_ea_strlen(struct gfs2_ea_header *ea)
+{
+	switch (ea->ea_type) {
+	case GFS2_EATYPE_USR:
+		return 5 + ea->ea_name_len + 1;
+	case GFS2_EATYPE_SYS:
+		return 7 + ea->ea_name_len + 1;
+	case GFS2_EATYPE_SECURITY:
+		return 9 + ea->ea_name_len + 1;
+	default:
+		return 0;
+	}
+}
+
+static int ea_list_i(struct gfs2_inode *ip, struct buffer_head *bh,
+		     struct gfs2_ea_header *ea, struct gfs2_ea_header *prev,
+		     void *private)
+{
+	struct ea_list *ei = private;
+	struct gfs2_ea_request *er = ei->ei_er;
+	unsigned int ea_size = gfs2_ea_strlen(ea);
+
+	if (ea->ea_type == GFS2_EATYPE_UNUSED)
+		return 0;
+
+	if (er->er_data_len) {
+		char *prefix = NULL;
+		unsigned int l = 0;
+		char c = 0;
+
+		if (ei->ei_size + ea_size > er->er_data_len)
+			return -ERANGE;
+
+		switch (ea->ea_type) {
+		case GFS2_EATYPE_USR:
+			prefix = "user.";
+			l = 5;
+			break;
+		case GFS2_EATYPE_SYS:
+			prefix = "system.";
+			l = 7;
+			break;
+		case GFS2_EATYPE_SECURITY:
+			prefix = "security.";
+			l = 9;
+			break;
+		}
+
+		BUG_ON(l == 0);
+
+		memcpy(er->er_data + ei->ei_size, prefix, l);
+		memcpy(er->er_data + ei->ei_size + l, GFS2_EA2NAME(ea),
+		       ea->ea_name_len);
+		memcpy(er->er_data + ei->ei_size + ea_size - 1, &c, 1);
+	}
+
+	ei->ei_size += ea_size;
+
+	return 0;
+}
+
+/**
+ * gfs2_listxattr - List gfs2 extended attributes
+ * @dentry: The dentry whose inode we are interested in
+ * @buffer: The buffer to write the results
+ * @size: The size of the buffer
+ *
+ * Returns: actual size of data on success, -errno on error
+ */
+
+ssize_t gfs2_listxattr(struct dentry *dentry, char *buffer, size_t size)
+{
+	struct gfs2_inode *ip = GFS2_I(dentry->d_inode);
+	struct gfs2_ea_request er;
+	struct gfs2_holder i_gh;
+	int error;
+
+	memset(&er, 0, sizeof(struct gfs2_ea_request));
+	if (size) {
+		er.er_data = buffer;
+		er.er_data_len = size;
+	}
+
+	error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &i_gh);
+	if (error)
+		return error;
+
+	if (ip->i_eattr) {
+		struct ea_list ei = { .ei_er = &er, .ei_size = 0 };
+
+		error = ea_foreach(ip, ea_list_i, &ei);
+		if (!error)
+			error = ei.ei_size;
+	}
+
+	gfs2_glock_dq_uninit(&i_gh);
+
+	return error;
+}
+
+/**
+ * ea_get_unstuffed - actually copies the unstuffed data into the
+ *                    request buffer
+ * @ip: The GFS2 inode
+ * @ea: The extended attribute header structure
+ * @data: The data to be copied
+ *
+ * Returns: errno
+ */
+
+static int ea_get_unstuffed(struct gfs2_inode *ip, struct gfs2_ea_header *ea,
+			    char *data)
+{
+	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+	struct buffer_head **bh;
+	unsigned int amount = GFS2_EA_DATA_LEN(ea);
+	unsigned int nptrs = DIV_ROUND_UP(amount, sdp->sd_jbsize);
+	__be64 *dataptrs = GFS2_EA2DATAPTRS(ea);
+	unsigned int x;
+	int error = 0;
+
+	bh = kcalloc(nptrs, sizeof(struct buffer_head *), GFP_NOFS);
+	if (!bh)
+		return -ENOMEM;
+
+	for (x = 0; x < nptrs; x++) {
+		error = gfs2_meta_read(ip->i_gl, be64_to_cpu(*dataptrs), 0,
+				       bh + x);
+		if (error) {
+			while (x--)
+				brelse(bh[x]);
+			goto out;
+		}
+		dataptrs++;
+	}
+
+	for (x = 0; x < nptrs; x++) {
+		error = gfs2_meta_wait(sdp, bh[x]);
+		if (error) {
+			for (; x < nptrs; x++)
+				brelse(bh[x]);
+			goto out;
+		}
+		if (gfs2_metatype_check(sdp, bh[x], GFS2_METATYPE_ED)) {
+			for (; x < nptrs; x++)
+				brelse(bh[x]);
+			error = -EIO;
+			goto out;
+		}
+
+		memcpy(data, bh[x]->b_data + sizeof(struct gfs2_meta_header),
+		       (sdp->sd_jbsize > amount) ? amount : sdp->sd_jbsize);
+
+		amount -= sdp->sd_jbsize;
+		data += sdp->sd_jbsize;
+
+		brelse(bh[x]);
+	}
+
+out:
+	kfree(bh);
+	return error;
+}
+
+int gfs2_ea_get_copy(struct gfs2_inode *ip, struct gfs2_ea_location *el,
+		     char *data, size_t size)
+{
+	int ret;
+	size_t len = GFS2_EA_DATA_LEN(el->el_ea);
+	if (len > size)
+		return -ERANGE;
+
+	if (GFS2_EA_IS_STUFFED(el->el_ea)) {
+		memcpy(data, GFS2_EA2DATA(el->el_ea), len);
+		return len;
+	}
+	ret = ea_get_unstuffed(ip, el->el_ea, data);
+	if (ret < 0)
+		return ret;
+	return len;
+}
+
+/**
+ * gfs2_xattr_get - Get a GFS2 extended attribute
+ * @inode: The inode
+ * @type: The type of extended attribute
+ * @name: The name of the extended attribute
+ * @buffer: The buffer to write the result into
+ * @size: The size of the buffer
+ *
+ * Returns: actual size of data on success, -errno on error
+ */
+
+int gfs2_xattr_get(struct inode *inode, int type, const char *name,
+		   void *buffer, size_t size)
+{
+	struct gfs2_inode *ip = GFS2_I(inode);
+	struct gfs2_ea_location el;
+	int error;
+
+	if (!ip->i_eattr)
+		return -ENODATA;
+	if (strlen(name) > GFS2_EA_MAX_NAME_LEN)
+		return -EINVAL;
+
+	error = gfs2_ea_find(ip, type, name, &el);
+	if (error)
+		return error;
+	if (!el.el_ea)
+		return -ENODATA;
+	if (size) 
+		error = gfs2_ea_get_copy(ip, &el, buffer, size);
+	else
+		error = GFS2_EA_DATA_LEN(el.el_ea);
+	brelse(el.el_bh);
+
+	return error;
+}
+
+/**
+ * ea_alloc_blk - allocates a new block for extended attributes.
+ * @ip: A pointer to the inode that's getting extended attributes
+ * @bhp: Pointer to pointer to a struct buffer_head
+ *
+ * Returns: errno
+ */
+
+static int ea_alloc_blk(struct gfs2_inode *ip, struct buffer_head **bhp)
+{
+	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+	struct gfs2_ea_header *ea;
+	unsigned int n = 1;
+	u64 block;
+	int error;
+
+	error = gfs2_alloc_block(ip, &block, &n);
+	if (error)
+		return error;
+	gfs2_trans_add_unrevoke(sdp, block, 1);
+	*bhp = gfs2_meta_new(ip->i_gl, block);
+	gfs2_trans_add_bh(ip->i_gl, *bhp, 1);
+	gfs2_metatype_set(*bhp, GFS2_METATYPE_EA, GFS2_FORMAT_EA);
+	gfs2_buffer_clear_tail(*bhp, sizeof(struct gfs2_meta_header));
+
+	ea = GFS2_EA_BH2FIRST(*bhp);
+	ea->ea_rec_len = cpu_to_be32(sdp->sd_jbsize);
+	ea->ea_type = GFS2_EATYPE_UNUSED;
+	ea->ea_flags = GFS2_EAFLAG_LAST;
+	ea->ea_num_ptrs = 0;
+
+	gfs2_add_inode_blocks(&ip->i_inode, 1);
+
+	return 0;
+}
+
+/**
+ * ea_write - writes the request info to an ea, creating new blocks if
+ *            necessary
+ * @ip: inode that is being modified
+ * @ea: the location of the new ea in a block
+ * @er: the write request
+ *
+ * Note: does not update ea_rec_len or the GFS2_EAFLAG_LAST bin of ea_flags
+ *
+ * returns : errno
+ */
+
+static int ea_write(struct gfs2_inode *ip, struct gfs2_ea_header *ea,
+		    struct gfs2_ea_request *er)
+{
+	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+	int error;
+
+	ea->ea_data_len = cpu_to_be32(er->er_data_len);
+	ea->ea_name_len = er->er_name_len;
+	ea->ea_type = er->er_type;
+	ea->__pad = 0;
+
+	memcpy(GFS2_EA2NAME(ea), er->er_name, er->er_name_len);
+
+	if (GFS2_EAREQ_SIZE_STUFFED(er) <= sdp->sd_jbsize) {
+		ea->ea_num_ptrs = 0;
+		memcpy(GFS2_EA2DATA(ea), er->er_data, er->er_data_len);
+	} else {
+		__be64 *dataptr = GFS2_EA2DATAPTRS(ea);
+		const char *data = er->er_data;
+		unsigned int data_len = er->er_data_len;
+		unsigned int copy;
+		unsigned int x;
+
+		ea->ea_num_ptrs = DIV_ROUND_UP(er->er_data_len, sdp->sd_jbsize);
+		for (x = 0; x < ea->ea_num_ptrs; x++) {
+			struct buffer_head *bh;
+			u64 block;
+			int mh_size = sizeof(struct gfs2_meta_header);
+			unsigned int n = 1;
+
+			error = gfs2_alloc_block(ip, &block, &n);
+			if (error)
+				return error;
+			gfs2_trans_add_unrevoke(sdp, block, 1);
+			bh = gfs2_meta_new(ip->i_gl, block);
+			gfs2_trans_add_bh(ip->i_gl, bh, 1);
+			gfs2_metatype_set(bh, GFS2_METATYPE_ED, GFS2_FORMAT_ED);
+
+			gfs2_add_inode_blocks(&ip->i_inode, 1);
+
+			copy = data_len > sdp->sd_jbsize ? sdp->sd_jbsize :
+							   data_len;
+			memcpy(bh->b_data + mh_size, data, copy);
+			if (copy < sdp->sd_jbsize)
+				memset(bh->b_data + mh_size + copy, 0,
+				       sdp->sd_jbsize - copy);
+
+			*dataptr++ = cpu_to_be64(bh->b_blocknr);
+			data += copy;
+			data_len -= copy;
+
+			brelse(bh);
+		}
+
+		gfs2_assert_withdraw(sdp, !data_len);
+	}
+
+	return 0;
+}
+
+typedef int (*ea_skeleton_call_t) (struct gfs2_inode *ip,
+				   struct gfs2_ea_request *er, void *private);
+
+static int ea_alloc_skeleton(struct gfs2_inode *ip, struct gfs2_ea_request *er,
+			     unsigned int blks,
+			     ea_skeleton_call_t skeleton_call, void *private)
+{
+	struct gfs2_alloc *al;
+	struct buffer_head *dibh;
+	int error;
+
+	al = gfs2_alloc_get(ip);
+	if (!al)
+		return -ENOMEM;
+
+	error = gfs2_quota_lock_check(ip);
+	if (error)
+		goto out;
+
+	al->al_requested = blks;
+
+	error = gfs2_inplace_reserve(ip);
+	if (error)
+		goto out_gunlock_q;
+
+	error = gfs2_trans_begin(GFS2_SB(&ip->i_inode),
+				 blks + al->al_rgd->rd_length +
+				 RES_DINODE + RES_STATFS + RES_QUOTA, 0);
+	if (error)
+		goto out_ipres;
+
+	error = skeleton_call(ip, er, private);
+	if (error)
+		goto out_end_trans;
+
+	error = gfs2_meta_inode_buffer(ip, &dibh);
+	if (!error) {
+		ip->i_inode.i_ctime = CURRENT_TIME;
+		gfs2_trans_add_bh(ip->i_gl, dibh, 1);
+		gfs2_dinode_out(ip, dibh->b_data);
+		brelse(dibh);
+	}
+
+out_end_trans:
+	gfs2_trans_end(GFS2_SB(&ip->i_inode));
+out_ipres:
+	gfs2_inplace_release(ip);
+out_gunlock_q:
+	gfs2_quota_unlock(ip);
+out:
+	gfs2_alloc_put(ip);
+	return error;
+}
+
+static int ea_init_i(struct gfs2_inode *ip, struct gfs2_ea_request *er,
+		     void *private)
+{
+	struct buffer_head *bh;
+	int error;
+
+	error = ea_alloc_blk(ip, &bh);
+	if (error)
+		return error;
+
+	ip->i_eattr = bh->b_blocknr;
+	error = ea_write(ip, GFS2_EA_BH2FIRST(bh), er);
+
+	brelse(bh);
+
+	return error;
+}
+
+/**
+ * ea_init - initializes a new eattr block
+ * @ip:
+ * @er:
+ *
+ * Returns: errno
+ */
+
+static int ea_init(struct gfs2_inode *ip, int type, const char *name,
+		   const void *data, size_t size)
+{
+	struct gfs2_ea_request er;
+	unsigned int jbsize = GFS2_SB(&ip->i_inode)->sd_jbsize;
+	unsigned int blks = 1;
+
+	er.er_type = type;
+	er.er_name = name;
+	er.er_name_len = strlen(name);
+	er.er_data = (void *)data;
+	er.er_data_len = size;
+
+	if (GFS2_EAREQ_SIZE_STUFFED(&er) > jbsize)
+		blks += DIV_ROUND_UP(er.er_data_len, jbsize);
+
+	return ea_alloc_skeleton(ip, &er, blks, ea_init_i, NULL);
+}
+
+static struct gfs2_ea_header *ea_split_ea(struct gfs2_ea_header *ea)
+{
+	u32 ea_size = GFS2_EA_SIZE(ea);
+	struct gfs2_ea_header *new = (struct gfs2_ea_header *)((char *)ea +
+				     ea_size);
+	u32 new_size = GFS2_EA_REC_LEN(ea) - ea_size;
+	int last = ea->ea_flags & GFS2_EAFLAG_LAST;
+
+	ea->ea_rec_len = cpu_to_be32(ea_size);
+	ea->ea_flags ^= last;
+
+	new->ea_rec_len = cpu_to_be32(new_size);
+	new->ea_flags = last;
+
+	return new;
+}
+
+static void ea_set_remove_stuffed(struct gfs2_inode *ip,
+				  struct gfs2_ea_location *el)
+{
+	struct gfs2_ea_header *ea = el->el_ea;
+	struct gfs2_ea_header *prev = el->el_prev;
+	u32 len;
+
+	gfs2_trans_add_bh(ip->i_gl, el->el_bh, 1);
+
+	if (!prev || !GFS2_EA_IS_STUFFED(ea)) {
+		ea->ea_type = GFS2_EATYPE_UNUSED;
+		return;
+	} else if (GFS2_EA2NEXT(prev) != ea) {
+		prev = GFS2_EA2NEXT(prev);
+		gfs2_assert_withdraw(GFS2_SB(&ip->i_inode), GFS2_EA2NEXT(prev) == ea);
+	}
+
+	len = GFS2_EA_REC_LEN(prev) + GFS2_EA_REC_LEN(ea);
+	prev->ea_rec_len = cpu_to_be32(len);
+
+	if (GFS2_EA_IS_LAST(ea))
+		prev->ea_flags |= GFS2_EAFLAG_LAST;
+}
+
+struct ea_set {
+	int ea_split;
+
+	struct gfs2_ea_request *es_er;
+	struct gfs2_ea_location *es_el;
+
+	struct buffer_head *es_bh;
+	struct gfs2_ea_header *es_ea;
+};
+
+static int ea_set_simple_noalloc(struct gfs2_inode *ip, struct buffer_head *bh,
+				 struct gfs2_ea_header *ea, struct ea_set *es)
+{
+	struct gfs2_ea_request *er = es->es_er;
+	struct buffer_head *dibh;
+	int error;
+
+	error = gfs2_trans_begin(GFS2_SB(&ip->i_inode), RES_DINODE + 2 * RES_EATTR, 0);
+	if (error)
+		return error;
+
+	gfs2_trans_add_bh(ip->i_gl, bh, 1);
+
+	if (es->ea_split)
+		ea = ea_split_ea(ea);
+
+	ea_write(ip, ea, er);
+
+	if (es->es_el)
+		ea_set_remove_stuffed(ip, es->es_el);
+
+	error = gfs2_meta_inode_buffer(ip, &dibh);
+	if (error)
+		goto out;
+	ip->i_inode.i_ctime = CURRENT_TIME;
+	gfs2_trans_add_bh(ip->i_gl, dibh, 1);
+	gfs2_dinode_out(ip, dibh->b_data);
+	brelse(dibh);
+out:
+	gfs2_trans_end(GFS2_SB(&ip->i_inode));
+	return error;
+}
+
+static int ea_set_simple_alloc(struct gfs2_inode *ip,
+			       struct gfs2_ea_request *er, void *private)
+{
+	struct ea_set *es = private;
+	struct gfs2_ea_header *ea = es->es_ea;
+	int error;
+
+	gfs2_trans_add_bh(ip->i_gl, es->es_bh, 1);
+
+	if (es->ea_split)
+		ea = ea_split_ea(ea);
+
+	error = ea_write(ip, ea, er);
+	if (error)
+		return error;
+
+	if (es->es_el)
+		ea_set_remove_stuffed(ip, es->es_el);
+
+	return 0;
+}
+
+static int ea_set_simple(struct gfs2_inode *ip, struct buffer_head *bh,
+			 struct gfs2_ea_header *ea, struct gfs2_ea_header *prev,
+			 void *private)
+{
+	struct ea_set *es = private;
+	unsigned int size;
+	int stuffed;
+	int error;
+
+	stuffed = ea_calc_size(GFS2_SB(&ip->i_inode), es->es_er->er_name_len,
+			       es->es_er->er_data_len, &size);
+
+	if (ea->ea_type == GFS2_EATYPE_UNUSED) {
+		if (GFS2_EA_REC_LEN(ea) < size)
+			return 0;
+		if (!GFS2_EA_IS_STUFFED(ea)) {
+			error = ea_remove_unstuffed(ip, bh, ea, prev, 1);
+			if (error)
+				return error;
+		}
+		es->ea_split = 0;
+	} else if (GFS2_EA_REC_LEN(ea) - GFS2_EA_SIZE(ea) >= size)
+		es->ea_split = 1;
+	else
+		return 0;
+
+	if (stuffed) {
+		error = ea_set_simple_noalloc(ip, bh, ea, es);
+		if (error)
+			return error;
+	} else {
+		unsigned int blks;
+
+		es->es_bh = bh;
+		es->es_ea = ea;
+		blks = 2 + DIV_ROUND_UP(es->es_er->er_data_len,
+					GFS2_SB(&ip->i_inode)->sd_jbsize);
+
+		error = ea_alloc_skeleton(ip, es->es_er, blks,
+					  ea_set_simple_alloc, es);
+		if (error)
+			return error;
+	}
+
+	return 1;
+}
+
+static int ea_set_block(struct gfs2_inode *ip, struct gfs2_ea_request *er,
+			void *private)
+{
+	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+	struct buffer_head *indbh, *newbh;
+	__be64 *eablk;
+	int error;
+	int mh_size = sizeof(struct gfs2_meta_header);
+
+	if (ip->i_diskflags & GFS2_DIF_EA_INDIRECT) {
+		__be64 *end;
+
+		error = gfs2_meta_read(ip->i_gl, ip->i_eattr, DIO_WAIT,
+				       &indbh);
+		if (error)
+			return error;
+
+		if (gfs2_metatype_check(sdp, indbh, GFS2_METATYPE_IN)) {
+			error = -EIO;
+			goto out;
+		}
+
+		eablk = (__be64 *)(indbh->b_data + mh_size);
+		end = eablk + sdp->sd_inptrs;
+
+		for (; eablk < end; eablk++)
+			if (!*eablk)
+				break;
+
+		if (eablk == end) {
+			error = -ENOSPC;
+			goto out;
+		}
+
+		gfs2_trans_add_bh(ip->i_gl, indbh, 1);
+	} else {
+		u64 blk;
+		unsigned int n = 1;
+		error = gfs2_alloc_block(ip, &blk, &n);
+		if (error)
+			return error;
+		gfs2_trans_add_unrevoke(sdp, blk, 1);
+		indbh = gfs2_meta_new(ip->i_gl, blk);
+		gfs2_trans_add_bh(ip->i_gl, indbh, 1);
+		gfs2_metatype_set(indbh, GFS2_METATYPE_IN, GFS2_FORMAT_IN);
+		gfs2_buffer_clear_tail(indbh, mh_size);
+
+		eablk = (__be64 *)(indbh->b_data + mh_size);
+		*eablk = cpu_to_be64(ip->i_eattr);
+		ip->i_eattr = blk;
+		ip->i_diskflags |= GFS2_DIF_EA_INDIRECT;
+		gfs2_add_inode_blocks(&ip->i_inode, 1);
+
+		eablk++;
+	}
+
+	error = ea_alloc_blk(ip, &newbh);
+	if (error)
+		goto out;
+
+	*eablk = cpu_to_be64((u64)newbh->b_blocknr);
+	error = ea_write(ip, GFS2_EA_BH2FIRST(newbh), er);
+	brelse(newbh);
+	if (error)
+		goto out;
+
+	if (private)
+		ea_set_remove_stuffed(ip, private);
+
+out:
+	brelse(indbh);
+	return error;
+}
+
+static int ea_set_i(struct gfs2_inode *ip, int type, const char *name,
+		    const void *value, size_t size, struct gfs2_ea_location *el)
+{
+	struct gfs2_ea_request er;
+	struct ea_set es;
+	unsigned int blks = 2;
+	int error;
+
+	er.er_type = type;
+	er.er_name = name;
+	er.er_data = (void *)value;
+	er.er_name_len = strlen(name);
+	er.er_data_len = size;
+
+	memset(&es, 0, sizeof(struct ea_set));
+	es.es_er = &er;
+	es.es_el = el;
+
+	error = ea_foreach(ip, ea_set_simple, &es);
+	if (error > 0)
+		return 0;
+	if (error)
+		return error;
+
+	if (!(ip->i_diskflags & GFS2_DIF_EA_INDIRECT))
+		blks++;
+	if (GFS2_EAREQ_SIZE_STUFFED(&er) > GFS2_SB(&ip->i_inode)->sd_jbsize)
+		blks += DIV_ROUND_UP(er.er_data_len, GFS2_SB(&ip->i_inode)->sd_jbsize);
+
+	return ea_alloc_skeleton(ip, &er, blks, ea_set_block, el);
+}
+
+static int ea_set_remove_unstuffed(struct gfs2_inode *ip,
+				   struct gfs2_ea_location *el)
+{
+	if (el->el_prev && GFS2_EA2NEXT(el->el_prev) != el->el_ea) {
+		el->el_prev = GFS2_EA2NEXT(el->el_prev);
+		gfs2_assert_withdraw(GFS2_SB(&ip->i_inode),
+				     GFS2_EA2NEXT(el->el_prev) == el->el_ea);
+	}
+
+	return ea_remove_unstuffed(ip, el->el_bh, el->el_ea, el->el_prev,0);
+}
+
+static int ea_remove_stuffed(struct gfs2_inode *ip, struct gfs2_ea_location *el)
+{
+	struct gfs2_ea_header *ea = el->el_ea;
+	struct gfs2_ea_header *prev = el->el_prev;
+	struct buffer_head *dibh;
+	int error;
+
+	error = gfs2_trans_begin(GFS2_SB(&ip->i_inode), RES_DINODE + RES_EATTR, 0);
+	if (error)
+		return error;
+
+	gfs2_trans_add_bh(ip->i_gl, el->el_bh, 1);
+
+	if (prev) {
+		u32 len;
+
+		len = GFS2_EA_REC_LEN(prev) + GFS2_EA_REC_LEN(ea);
+		prev->ea_rec_len = cpu_to_be32(len);
+
+		if (GFS2_EA_IS_LAST(ea))
+			prev->ea_flags |= GFS2_EAFLAG_LAST;
+	} else {
+		ea->ea_type = GFS2_EATYPE_UNUSED;
+	}
+
+	error = gfs2_meta_inode_buffer(ip, &dibh);
+	if (!error) {
+		ip->i_inode.i_ctime = CURRENT_TIME;
+		gfs2_trans_add_bh(ip->i_gl, dibh, 1);
+		gfs2_dinode_out(ip, dibh->b_data);
+		brelse(dibh);
+	}
+
+	gfs2_trans_end(GFS2_SB(&ip->i_inode));
+
+	return error;
+}
+
+/**
+ * gfs2_xattr_remove - Remove a GFS2 extended attribute
+ * @inode: The inode
+ * @type: The type of the extended attribute
+ * @name: The name of the extended attribute
+ *
+ * This is not called directly by the VFS since we use the (common)
+ * scheme of making a "set with NULL data" mean a remove request. Note
+ * that this is different from a set with zero length data.
+ *
+ * Returns: 0, or errno on failure
+ */
+
+static int gfs2_xattr_remove(struct inode *inode, int type, const char *name)
+{
+	struct gfs2_inode *ip = GFS2_I(inode);
+	struct gfs2_ea_location el;
+	int error;
+
+	if (!ip->i_eattr)
+		return -ENODATA;
+
+	error = gfs2_ea_find(ip, type, name, &el);
+	if (error)
+		return error;
+	if (!el.el_ea)
+		return -ENODATA;
+
+	if (GFS2_EA_IS_STUFFED(el.el_ea))
+		error = ea_remove_stuffed(ip, &el);
+	else
+		error = ea_remove_unstuffed(ip, el.el_bh, el.el_ea, el.el_prev, 0);
+
+	brelse(el.el_bh);
+
+	return error;
+}
+
+/**
+ * gfs2_xattr_set - Set (or remove) a GFS2 extended attribute
+ * @inode: The inode
+ * @type: The type of the extended attribute
+ * @name: The name of the extended attribute
+ * @value: The value of the extended attribute (NULL for remove)
+ * @size: The size of the @value argument
+ * @flags: Create or Replace
+ *
+ * See gfs2_xattr_remove() for details of the removal of xattrs.
+ *
+ * Returns: 0 or errno on failure
+ */
+
+int gfs2_xattr_set(struct inode *inode, int type, const char *name,
+		   const void *value, size_t size, int flags)
+{
+	struct gfs2_sbd *sdp = GFS2_SB(inode);
+	struct gfs2_inode *ip = GFS2_I(inode);
+	struct gfs2_ea_location el;
+	unsigned int namel = strlen(name);
+	int error;
+
+	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
+		return -EPERM;
+	if (namel > GFS2_EA_MAX_NAME_LEN)
+		return -ERANGE;
+
+	if (value == NULL)
+		return gfs2_xattr_remove(inode, type, name);
+
+	if (ea_check_size(sdp, namel, size))
+		return -ERANGE;
+
+	if (!ip->i_eattr) {
+		if (flags & XATTR_REPLACE)
+			return -ENODATA;
+		return ea_init(ip, type, name, value, size);
+	}
+
+	error = gfs2_ea_find(ip, type, name, &el);
+	if (error)
+		return error;
+
+	if (el.el_ea) {
+		if (ip->i_diskflags & GFS2_DIF_APPENDONLY) {
+			brelse(el.el_bh);
+			return -EPERM;
+		}
+
+		error = -EEXIST;
+		if (!(flags & XATTR_CREATE)) {
+			int unstuffed = !GFS2_EA_IS_STUFFED(el.el_ea);
+			error = ea_set_i(ip, type, name, value, size, &el);
+			if (!error && unstuffed)
+				ea_set_remove_unstuffed(ip, &el);
+		}
+
+		brelse(el.el_bh);
+		return error;
+	}
+
+	error = -ENODATA;
+	if (!(flags & XATTR_REPLACE))
+		error = ea_set_i(ip, type, name, value, size, NULL);
+
+	return error;
+}
+
+static int ea_acl_chmod_unstuffed(struct gfs2_inode *ip,
+				  struct gfs2_ea_header *ea, char *data)
+{
+	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+	struct buffer_head **bh;
+	unsigned int amount = GFS2_EA_DATA_LEN(ea);
+	unsigned int nptrs = DIV_ROUND_UP(amount, sdp->sd_jbsize);
+	__be64 *dataptrs = GFS2_EA2DATAPTRS(ea);
+	unsigned int x;
+	int error;
+
+	bh = kcalloc(nptrs, sizeof(struct buffer_head *), GFP_NOFS);
+	if (!bh)
+		return -ENOMEM;
+
+	error = gfs2_trans_begin(sdp, nptrs + RES_DINODE, 0);
+	if (error)
+		goto out;
+
+	for (x = 0; x < nptrs; x++) {
+		error = gfs2_meta_read(ip->i_gl, be64_to_cpu(*dataptrs), 0,
+				       bh + x);
+		if (error) {
+			while (x--)
+				brelse(bh[x]);
+			goto fail;
+		}
+		dataptrs++;
+	}
+
+	for (x = 0; x < nptrs; x++) {
+		error = gfs2_meta_wait(sdp, bh[x]);
+		if (error) {
+			for (; x < nptrs; x++)
+				brelse(bh[x]);
+			goto fail;
+		}
+		if (gfs2_metatype_check(sdp, bh[x], GFS2_METATYPE_ED)) {
+			for (; x < nptrs; x++)
+				brelse(bh[x]);
+			error = -EIO;
+			goto fail;
+		}
+
+		gfs2_trans_add_bh(ip->i_gl, bh[x], 1);
+
+		memcpy(bh[x]->b_data + sizeof(struct gfs2_meta_header), data,
+		       (sdp->sd_jbsize > amount) ? amount : sdp->sd_jbsize);
+
+		amount -= sdp->sd_jbsize;
+		data += sdp->sd_jbsize;
+
+		brelse(bh[x]);
+	}
+
+out:
+	kfree(bh);
+	return error;
+
+fail:
+	gfs2_trans_end(sdp);
+	kfree(bh);
+	return error;
+}
+
+int gfs2_ea_acl_chmod(struct gfs2_inode *ip, struct gfs2_ea_location *el,
+		      struct iattr *attr, char *data)
+{
+	struct buffer_head *dibh;
+	int error;
+
+	if (GFS2_EA_IS_STUFFED(el->el_ea)) {
+		error = gfs2_trans_begin(GFS2_SB(&ip->i_inode), RES_DINODE + RES_EATTR, 0);
+		if (error)
+			return error;
+
+		gfs2_trans_add_bh(ip->i_gl, el->el_bh, 1);
+		memcpy(GFS2_EA2DATA(el->el_ea), data,
+		       GFS2_EA_DATA_LEN(el->el_ea));
+	} else
+		error = ea_acl_chmod_unstuffed(ip, el->el_ea, data);
+
+	if (error)
+		return error;
+
+	error = gfs2_meta_inode_buffer(ip, &dibh);
+	if (!error) {
+		error = inode_setattr(&ip->i_inode, attr);
+		gfs2_assert_warn(GFS2_SB(&ip->i_inode), !error);
+		gfs2_trans_add_bh(ip->i_gl, dibh, 1);
+		gfs2_dinode_out(ip, dibh->b_data);
+		brelse(dibh);
+	}
+
+	gfs2_trans_end(GFS2_SB(&ip->i_inode));
+
+	return error;
+}
+
+static int ea_dealloc_indirect(struct gfs2_inode *ip)
+{
+	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+	struct gfs2_rgrp_list rlist;
+	struct buffer_head *indbh, *dibh;
+	__be64 *eablk, *end;
+	unsigned int rg_blocks = 0;
+	u64 bstart = 0;
+	unsigned int blen = 0;
+	unsigned int blks = 0;
+	unsigned int x;
+	int error;
+
+	memset(&rlist, 0, sizeof(struct gfs2_rgrp_list));
+
+	error = gfs2_meta_read(ip->i_gl, ip->i_eattr, DIO_WAIT, &indbh);
+	if (error)
+		return error;
+
+	if (gfs2_metatype_check(sdp, indbh, GFS2_METATYPE_IN)) {
+		error = -EIO;
+		goto out;
+	}
+
+	eablk = (__be64 *)(indbh->b_data + sizeof(struct gfs2_meta_header));
+	end = eablk + sdp->sd_inptrs;
+
+	for (; eablk < end; eablk++) {
+		u64 bn;
+
+		if (!*eablk)
+			break;
+		bn = be64_to_cpu(*eablk);
+
+		if (bstart + blen == bn)
+			blen++;
+		else {
+			if (bstart)
+				gfs2_rlist_add(sdp, &rlist, bstart);
+			bstart = bn;
+			blen = 1;
+		}
+		blks++;
+	}
+	if (bstart)
+		gfs2_rlist_add(sdp, &rlist, bstart);
+	else
+		goto out;
+
+	gfs2_rlist_alloc(&rlist, LM_ST_EXCLUSIVE);
+
+	for (x = 0; x < rlist.rl_rgrps; x++) {
+		struct gfs2_rgrpd *rgd;
+		rgd = rlist.rl_ghs[x].gh_gl->gl_object;
+		rg_blocks += rgd->rd_length;
+	}
+
+	error = gfs2_glock_nq_m(rlist.rl_rgrps, rlist.rl_ghs);
+	if (error)
+		goto out_rlist_free;
+
+	error = gfs2_trans_begin(sdp, rg_blocks + RES_DINODE + RES_INDIRECT +
+				 RES_STATFS + RES_QUOTA, blks);
+	if (error)
+		goto out_gunlock;
+
+	gfs2_trans_add_bh(ip->i_gl, indbh, 1);
+
+	eablk = (__be64 *)(indbh->b_data + sizeof(struct gfs2_meta_header));
+	bstart = 0;
+	blen = 0;
+
+	for (; eablk < end; eablk++) {
+		u64 bn;
+
+		if (!*eablk)
+			break;
+		bn = be64_to_cpu(*eablk);
+
+		if (bstart + blen == bn)
+			blen++;
+		else {
+			if (bstart)
+				gfs2_free_meta(ip, bstart, blen);
+			bstart = bn;
+			blen = 1;
+		}
+
+		*eablk = 0;
+		gfs2_add_inode_blocks(&ip->i_inode, -1);
+	}
+	if (bstart)
+		gfs2_free_meta(ip, bstart, blen);
+
+	ip->i_diskflags &= ~GFS2_DIF_EA_INDIRECT;
+
+	error = gfs2_meta_inode_buffer(ip, &dibh);
+	if (!error) {
+		gfs2_trans_add_bh(ip->i_gl, dibh, 1);
+		gfs2_dinode_out(ip, dibh->b_data);
+		brelse(dibh);
+	}
+
+	gfs2_trans_end(sdp);
+
+out_gunlock:
+	gfs2_glock_dq_m(rlist.rl_rgrps, rlist.rl_ghs);
+out_rlist_free:
+	gfs2_rlist_free(&rlist);
+out:
+	brelse(indbh);
+	return error;
+}
+
+static int ea_dealloc_block(struct gfs2_inode *ip)
+{
+	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+	struct gfs2_alloc *al = ip->i_alloc;
+	struct gfs2_rgrpd *rgd;
+	struct buffer_head *dibh;
+	int error;
+
+	rgd = gfs2_blk2rgrpd(sdp, ip->i_eattr);
+	if (!rgd) {
+		gfs2_consist_inode(ip);
+		return -EIO;
+	}
+
+	error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0,
+				   &al->al_rgd_gh);
+	if (error)
+		return error;
+
+	error = gfs2_trans_begin(sdp, RES_RG_BIT + RES_DINODE + RES_STATFS +
+				 RES_QUOTA, 1);
+	if (error)
+		goto out_gunlock;
+
+	gfs2_free_meta(ip, ip->i_eattr, 1);
+
+	ip->i_eattr = 0;
+	gfs2_add_inode_blocks(&ip->i_inode, -1);
+
+	error = gfs2_meta_inode_buffer(ip, &dibh);
+	if (!error) {
+		gfs2_trans_add_bh(ip->i_gl, dibh, 1);
+		gfs2_dinode_out(ip, dibh->b_data);
+		brelse(dibh);
+	}
+
+	gfs2_trans_end(sdp);
+
+out_gunlock:
+	gfs2_glock_dq_uninit(&al->al_rgd_gh);
+	return error;
+}
+
+/**
+ * gfs2_ea_dealloc - deallocate the extended attribute fork
+ * @ip: the inode
+ *
+ * Returns: errno
+ */
+
+int gfs2_ea_dealloc(struct gfs2_inode *ip)
+{
+	struct gfs2_alloc *al;
+	int error;
+
+	al = gfs2_alloc_get(ip);
+	if (!al)
+		return -ENOMEM;
+
+	error = gfs2_quota_hold(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
+	if (error)
+		goto out_alloc;
+
+	error = gfs2_rindex_hold(GFS2_SB(&ip->i_inode), &al->al_ri_gh);
+	if (error)
+		goto out_quota;
+
+	error = ea_foreach(ip, ea_dealloc_unstuffed, NULL);
+	if (error)
+		goto out_rindex;
+
+	if (ip->i_diskflags & GFS2_DIF_EA_INDIRECT) {
+		error = ea_dealloc_indirect(ip);
+		if (error)
+			goto out_rindex;
+	}
+
+	error = ea_dealloc_block(ip);
+
+out_rindex:
+	gfs2_glock_dq_uninit(&al->al_ri_gh);
+out_quota:
+	gfs2_quota_unhold(ip);
+out_alloc:
+	gfs2_alloc_put(ip);
+	return error;
+}
+
+static int gfs2_xattr_user_get(struct inode *inode, const char *name,
+			       void *buffer, size_t size)
+{
+	return gfs2_xattr_get(inode, GFS2_EATYPE_USR, name, buffer, size);
+}
+
+static int gfs2_xattr_user_set(struct inode *inode, const char *name,
+			       const void *value, size_t size, int flags)
+{
+	return gfs2_xattr_set(inode, GFS2_EATYPE_USR, name, value, size, flags);
+}
+
+static int gfs2_xattr_system_get(struct inode *inode, const char *name,
+				 void *buffer, size_t size)
+{
+	return gfs2_xattr_get(inode, GFS2_EATYPE_SYS, name, buffer, size);
+}
+
+static int gfs2_xattr_system_set(struct inode *inode, const char *name,
+				 const void *value, size_t size, int flags)
+{
+	return gfs2_xattr_set(inode, GFS2_EATYPE_SYS, name, value, size, flags);
+}
+
+static int gfs2_xattr_security_get(struct inode *inode, const char *name,
+				   void *buffer, size_t size)
+{
+	return gfs2_xattr_get(inode, GFS2_EATYPE_SECURITY, name, buffer, size);
+}
+
+static int gfs2_xattr_security_set(struct inode *inode, const char *name,
+				   const void *value, size_t size, int flags)
+{
+	return gfs2_xattr_set(inode, GFS2_EATYPE_SECURITY, name, value, size, flags);
+}
+
+static struct xattr_handler gfs2_xattr_user_handler = {
+	.prefix = XATTR_USER_PREFIX,
+	.get    = gfs2_xattr_user_get,
+	.set    = gfs2_xattr_user_set,
+};
+
+static struct xattr_handler gfs2_xattr_security_handler = {
+	.prefix = XATTR_SECURITY_PREFIX,
+	.get    = gfs2_xattr_security_get,
+	.set    = gfs2_xattr_security_set,
+};
+
+static struct xattr_handler gfs2_xattr_system_handler = {
+	.prefix = XATTR_SYSTEM_PREFIX,
+	.get    = gfs2_xattr_system_get,
+	.set    = gfs2_xattr_system_set,
+};
+
+struct xattr_handler *gfs2_xattr_handlers[] = {
+	&gfs2_xattr_user_handler,
+	&gfs2_xattr_security_handler,
+	&gfs2_xattr_system_handler,
+	NULL,
+};
+
diff --git a/fs/gfs2/xattr.h b/fs/gfs2/xattr.h
new file mode 100644
index 0000000..4040a18
--- /dev/null
+++ b/fs/gfs2/xattr.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
+ * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU General Public License version 2.
+ */
+
+#ifndef __EATTR_DOT_H__
+#define __EATTR_DOT_H__
+
+struct gfs2_inode;
+struct iattr;
+
+#define GFS2_EA_REC_LEN(ea) be32_to_cpu((ea)->ea_rec_len)
+#define GFS2_EA_DATA_LEN(ea) be32_to_cpu((ea)->ea_data_len)
+
+#define GFS2_EA_SIZE(ea) \
+ALIGN(sizeof(struct gfs2_ea_header) + (ea)->ea_name_len + \
+      ((GFS2_EA_IS_STUFFED(ea)) ? GFS2_EA_DATA_LEN(ea) : \
+                                  (sizeof(__be64) * (ea)->ea_num_ptrs)), 8)
+
+#define GFS2_EA_IS_STUFFED(ea) (!(ea)->ea_num_ptrs)
+#define GFS2_EA_IS_LAST(ea) ((ea)->ea_flags & GFS2_EAFLAG_LAST)
+
+#define GFS2_EAREQ_SIZE_STUFFED(er) \
+ALIGN(sizeof(struct gfs2_ea_header) + (er)->er_name_len + (er)->er_data_len, 8)
+
+#define GFS2_EA2NAME(ea) ((char *)((struct gfs2_ea_header *)(ea) + 1))
+#define GFS2_EA2DATA(ea) (GFS2_EA2NAME(ea) + (ea)->ea_name_len)
+
+#define GFS2_EA2DATAPTRS(ea) \
+((__be64 *)(GFS2_EA2NAME(ea) + ALIGN((ea)->ea_name_len, 8)))
+
+#define GFS2_EA2NEXT(ea) \
+((struct gfs2_ea_header *)((char *)(ea) + GFS2_EA_REC_LEN(ea)))
+
+#define GFS2_EA_BH2FIRST(bh) \
+((struct gfs2_ea_header *)((bh)->b_data + sizeof(struct gfs2_meta_header)))
+
+struct gfs2_ea_request {
+	const char *er_name;
+	char *er_data;
+	unsigned int er_name_len;
+	unsigned int er_data_len;
+	unsigned int er_type; /* GFS2_EATYPE_... */
+};
+
+struct gfs2_ea_location {
+	struct buffer_head *el_bh;
+	struct gfs2_ea_header *el_ea;
+	struct gfs2_ea_header *el_prev;
+};
+
+extern int gfs2_xattr_get(struct inode *inode, int type, const char *name,
+			  void *buffer, size_t size);
+extern int gfs2_xattr_set(struct inode *inode, int type, const char *name,
+			  const void *value, size_t size, int flags);
+extern ssize_t gfs2_listxattr(struct dentry *dentry, char *buffer, size_t size);
+extern int gfs2_ea_dealloc(struct gfs2_inode *ip);
+
+/* Exported to acl.c */
+
+extern int gfs2_ea_find(struct gfs2_inode *ip, int type, const char *name,
+			struct gfs2_ea_location *el);
+extern int gfs2_ea_get_copy(struct gfs2_inode *ip, struct gfs2_ea_location *el,
+			    char *data, size_t size);
+extern int gfs2_ea_acl_chmod(struct gfs2_inode *ip, struct gfs2_ea_location *el,
+			     struct iattr *attr, char *data);
+
+#endif /* __EATTR_DOT_H__ */
-- 
1.6.2.5


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